IP Library Granted Patent US 12,365,752
Granted Patent B2
US 12,365,752 · App. 18/746,848 · Granted Jul 22, 2025

Functional oligomers and functional polymers including hydroxylated polymers and conjugates thereof and uses thereof

Inventors: Jeremiah A. Johnson (Boston, MA); Wenxu Zhang (Belmont, MA); Peyton Shieh (Cambridge, MA); Keith Husted (Boston, MA)
Assignee: Massachusetts Institute of Technology
C08F232/08C07D321/12C08F8/12C08F234/02
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Quick Facts
Patent No.
US 12,365,752
App. No.
18/746,848
Granted
Jul 22, 2025
Kind
B2
Abstract

The present disclosure describes functional oligomers or functional polymers. The functional oligomers or functional polymers may contain functional groups, e.g., —OH and/or —CHO. The functional oligomers or functional polymers may be obtained from hydrolyzing certain copolymers and may be soluble in commercially available solvents. The copolymers may be thermosetting polymers. The functional oligomers and functional polymers may be useful for recycling thermosetting polymers and may be useful as starting materials for preparing additional oligomers or polymers.

Claims (102)

1. A method of preparing a hydroxylated polymer comprising hydrolyzing a copolymer prepared by a method comprising polymerizing in the presence of a metathesis catalyst:

i) one or more instances of a first monomer, wherein each instance of the first monomer is independently of the formula:

or salt thereof, wherein:

each instance of

 is Ring B, wherein each instance of Ring B is independently a substituted or unsubstituted, monocyclic carbocyclic ring, substituted or unsubstituted, monocyclic heterocyclic ring, substituted or unsubstituted, monocyclic aryl ring, or substituted or unsubstituted, monocyclic heteroaryl ring;

each instance of Z is independently C(R P ) 2 or O;

each instance of R P is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl; and

each instance of is independently a single bond or double bond; and

ii) one or more instances of a second monomer, wherein each instance of the second monomer is of Formula (B):

or a salt thereof; wherein:

each instance of Y is independently O or C(R Q ) 2 ;

each instance of R Q is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of R K is independently hydrogen, halogen, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or —OR N ;

each instance of R N is independently hydrogen, substituted or unsubstituted acyl, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or an oxygen protecting group;

each instance of j is independently 1, 2, or 3; and

each instance of k is independently 0, 1, 2, or 3;

wherein any two instances of the first monomer are the same as or different from each other, and any two instances of the second monomer are the same as or different from each other; and

wherein the step of hydrolyzing the copolymer comprises hydrolyzing one or more instances of the —O—Si bonds of the copolymer to form —OH.

2. A method of preparing a functional oligomer or functional polymer comprising hydrolyzing a copolymer prepared by a method comprising polymerizing in the presence of a metathesis catalyst:

i) one or more instances of a first monomer, wherein each instance of the first monomer is of the formula:

or salt thereof;

ii) one or more instances of a second monomer, wherein each instance of the second monomer is of the formula:

or a salt thereof; and

iii) optionally one or more instances of a third monomer;

wherein:

each instance of Z is independently a single bond, C(R P ) 2 , or O;

each instance of R P is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of is independently a single or double bond;

each instance of R H is independently hydrogen, halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —OR a , —OCN, —OC(═O)R a , —OC(═S)R a , —OC(═O)OR a , —OC(═O)N(R a ) 2 , —OS(═O)R a , —OS(═O)OR a , —OS(═O)N(R a ) 2 , —OS(═O) 2 R a , —OS(═O) 2 OR a , —OS(═O) 2 N(R a ) 2 , —OSi(R a ) 3 , —OSi(R a ) 2 (OR a ), —OSi(R a )(OR a ) 2 , —OSi(OR a ) 3 , oxo, —N(R a ) 2 , —N═C(R a ) 2 , ═NR a , —NC, —NCO, —N 3 , —NO 2 , —NR a C(═O)R a , —NR a C(═O)OR a , —NR a C(═O)N(R a ) 2 , —NR a S(═O)R a , —NR a S(═O)OR a , —NR a S(═O)N(R a ) 2 , —NR a S(═O) 2 R a , —NR a S(═O) 2 OR a , —NR a S(═O) 2 N(R a ) 2 , —SR a , —SCN, —S(═O)R a , —S(═O)OR a , —S(═O)N(R a ) 2 , —S(═O) 2 R a , —S(═O) 2 OR a , —S(═O) 2 N(R a ) 2 , —SeR a , halogen, —CN, —C(═NR a )R a , —C(═NR a )OR a , —C(═NR a )N(R a ) 2 , —C(═O)R a , —C(═O)OR a , —C(═O)SR a , —C(═S)OR a , or —C(═O)N(R a ) 2 ;

or the two instances of R H of one or more instances of

 are joined with the intervening carbon atoms to independently form a substituted or unsubstituted, monocyclic carbocyclic ring, substituted or unsubstituted, monocyclic heterocyclic ring, substituted or unsubstituted, monocyclic aryl ring, or substituted or unsubstituted, monocyclic heteroaryl ring;

each instance of R a is independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted, monocyclic carbocyclyl, substituted or unsubstituted, monocyclic heterocyclyl, substituted or unsubstituted, monocyclic aryl, substituted or unsubstituted, monocyclic heteroaryl, a nitrogen protecting group when attached to a nitrogen atom, an oxygen protecting group when attached to an oxygen atom, or a sulfur protecting group when attached to a sulfur atom, or two instances of R a are joined to form substituted or unsubstituted heterocyclyl or substituted or unsubstituted heteroaryl;

Y is O or C(R Q ) 2 ;

each instance of R Q is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of R K is independently hydrogen, halogen, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or —OR N ;

each instance of R N is independently hydrogen, substituted or unsubstituted acyl, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or an oxygen protecting group;

j is 1, 2, or 3; and

k is 0, 1, 2, or 3; and

iii) optionally one or more instances of a third monomer;

wherein any two instances of the first monomer are the same as or different from each other, any two instances of the second monomer are the same as or different from each other, any two instances of the third monomer are the same as or different from each other, and each instance of the first monomer, the second monomer, and the third monomer if present, is different from each other;

wherein the step of hydrolyzing the copolymer comprises hydrolyzing one or more instances of the —O—Si bonds of the copolymer to form —OH;

any two instances of the first monomer are the same as or different from each other, any two instances of the second monomer are the same as or different from each other, any two instances of the third monomer are the same as or different from each other, and each instance of the first monomer, the second monomer, and the third monomer if present, is different from each other; and

wherein the step of hydrolyzing the copolymer comprises hydrolyzing one or more instances of the —O—Si bonds of the copolymer to form —OH.

3. A method of preparing a functional oligomer or functional polymer comprising hydrolyzing a copolymer prepared by a method comprising polymerizing in the presence of a metathesis catalyst:

i) one or more instances of a first monomer, wherein each instance of the first monomer is of the formula:

or salt thereof;

ii) one or more instances of a second monomer, wherein each instance of the second monomer is of the formula:

or a salt thereof; and

iii) optionally one or more instances of a third monomer;

wherein:

each instance of Z is independently a single bond, C(R P ) 2 , or O;

each instance of R P is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of is independently a single or double bond;

each instance of R H is independently hydrogen, halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —OR a , —OCN, —OC(═O)R a , —OC(═S)R a , —OC(═O)OR a , —OC(═O)N(R a ) 2 , —OS(═O)R a , —OS(═O)OR a , —OS(═O)N(R a ) 2 , —OS(═O) 2 R a , —OS(═O) 2 OR a , —OS(═O) 2 N(R a ) 2 , —OSi(R a ) 3 , —OSi(R a ) 2 (OR a ), —OSi(R a )(OR a ) 2 , —OSi(OR a ) 3 , oxo, —N(R a ) 2 , —N═C(R a ) 2 , ═NR a , —NC, —NCO, —N 3 , —NO 2 , —NR a C(═O)R a , —NR a C(═O)OR a , —NR a C(═O)N(R a ) 2 , —NR a S(═O)R a , —NR a S(═O)OR a , —NR a S(═O)N(R a ) 2 , —NR a S(═O) 2 R a , —NR a S(═O) 2 OR a , —NR a S(═O) 2 N(R a ) 2 , —SR a , —SCN, —S(═O)R a , —S(═O)OR a , —S(═O)N(R a ) 2 , —S(═O) 2 R a , —S(═O) 2 OR a , —S(═O) 2 N(R a ) 2 , —SeR a , halogen, —CN, —C(═NR a )R a , —C(═NR a )OR a , —C(═NR a )N(R a ) 2 , —C(═O)R a , —C(═O)OR a , —C(═O)SR a , —C(═S)OR a , or —C(═O)N(R a ) 2 ;

or the two instances of R H of one or more instances of

 are joined with the intervening carbon atoms to independently form a substituted or unsubstituted, monocyclic carbocyclic ring, substituted or unsubstituted, monocyclic heterocyclic ring, substituted or unsubstituted, monocyclic aryl ring, or substituted or unsubstituted, monocyclic heteroaryl ring;

each instance of R a is independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted, monocyclic carbocyclyl, substituted or unsubstituted, monocyclic heterocyclyl, substituted or unsubstituted, monocyclic aryl, substituted or unsubstituted, monocyclic heteroaryl, a nitrogen protecting group when attached to a nitrogen atom, an oxygen protecting group when attached to an oxygen atom, or a sulfur protecting group when attached to a sulfur atom, or two instances of R a are joined to form substituted or unsubstituted heterocyclyl or substituted or unsubstituted heteroaryl;

each instance of R S is independently hydrogen or —OR a ;

each instance of w is independently 0, 1, 2, 3, or 4;

each instance of R T is independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;

any two instances of the first monomer are the same as or different from each other, any two instances of the second monomer are the same as or different from each other, any two instances of the third monomer are the same as or different from each other, and each instance of the first monomer, the second monomer, and the third monomer if present, is different from each other; and

wherein the step of hydrolyzing the copolymer comprises hydrolyzing one or more instances of

 of the copolymer to form

4. A compound of Formula (B1):

or a salt thereof; wherein:

Y is O or C(R Q ) 2 ;

each instance of R Q is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of R K is independently hydrogen, halogen, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or —OR N ;

each instance of R N is independently hydrogen, substituted or unsubstituted acyl, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or an oxygen protecting group;

j is 1, 2, or 3; and

k is 0, 1, 2, or 3;

provided that the compound is not of the formula:

5. A copolymer prepared by a method comprising polymerizing:

one or more instances of a first monomer;

one or more instances of a second monomer, wherein the second monomer is a compound of claim 4 , or a salt thereof; and

optionally one or more instances of a third monomer;

wherein any two instances of the first monomer are the same as or different from each other, any two instances of the second monomer are the same as or different from each other, any two instances of the third monomer are the same as or different from each other, and each instance of the first monomer, the second monomer, and the third monomer if present, is different from each other;

in the presence of a metathesis catalyst.

6. A method of preparing a copolymer of claim 5 comprising polymerizing:

one or more instances of a first monomer;

one or more instances of a second monomer, wherein the second monomer is a compound of claim 4 , or a salt thereof; and

optionally one or more instances of a third monomer;

wherein any two instances of the first monomer are the same as or different from each other, any two instances of the second monomer are the same as or different from each other, any two instances of the third monomer are the same as or different from each other, and each instance of the first monomer, the second monomer, and the third monomer if present, is different from each other;

in the presence of a metathesis catalyst.

7. A method of preparing a conjugate comprising reacting a hydroxy-reacting substance with a hydroxylated polymer, wherein the hydroxylated polymer is prepared by hydrolyzing a copolymer prepared by a method comprising polymerizing in the presence of a metathesis catalyst:

i) one or more instances of a first monomer, wherein each instance of the first monomer is independently of the formula:

or salt thereof, wherein:

each instance of

 is Ring B, wherein each instance of Ring B is independently a substituted or unsubstituted, monocyclic carbocyclic ring, substituted or unsubstituted, monocyclic heterocyclic ring, substituted or unsubstituted, monocyclic aryl ring, or substituted or unsubstituted, monocyclic heteroaryl ring;

each instance of Z is independently C(R P ) 2 or O;

each instance of R P is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl; and

each instance of is independently a single bond or double bond; and

ii) one or more instances of a second monomer, wherein each instance of the second monomer is of Formula (B):

or a salt thereof; wherein:

each instance of Y is independently O or C(R Q ) 2 ;

each instance of R Q is independently hydrogen, halogen, or substituted or unsubstituted, C 1-6 alkyl;

each instance of R K is independently hydrogen, halogen, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or —OR N ;

each instance of R N is independently hydrogen, substituted or unsubstituted acyl, substituted or unsubstituted, C 1-10 alkyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or an oxygen protecting group;

each instance of j is independently 1, 2, or 3; and

each instance of k is independently 0, 1, 2, or 3;

wherein any two instances of the first monomer are the same as or different from each other, and any two instances of the second monomer are the same as or different from each other; and

wherein the step of hydrolyzing the copolymer comprises hydrolyzing one or more instances of the —O—Si bonds of the copolymer to form —OH.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2024
From: JOHNSON, JEREMIAH A.; ZHANG, WENXU; SHIEH, PEYTON; HUSTED, KEITH
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 068790/0595 →
Continuity (3)
Division 17022021 · Sep 15, 2020
Provisional Application 62935799 · Nov 15, 2019
Related Publication 20240425633A1 · Dec 26, 2024
References Cited (141)
US 3256308A · Sterling · 1966 [cited by examiner]
US 3280148A · Pawloski et al. · 1966 [cited by applicant]
US 3337598A · Pawloski et al. · 1967 [cited by applicant]
US 4510136A · Moberg · 1985 [cited by applicant]
US 5811515A · Grubbs et al. · 1998 [cited by applicant]
US 8829206B2 · Terrill et al. · 2014 [cited by applicant]
US 8829207B2 · Billodeaux et al. · 2014 [cited by applicant]
US 8969598B2 · Terrill et al. · 2015 [cited by applicant]
US 9944730B2 · Rhodes et al. · 2018 [cited by applicant]
US 10591818B2 · Knapp · 2020 [cited by examiner]
US 10988491B2 · Johnson et al. · 2021 [cited by applicant]
US 12030980B2 · Johnson et al. · 2024 [cited by applicant]
US 12054570B2 · Johnson et al. · 2024 [cited by applicant]
US 20010006988A1 · Kuhnle et al. · 2001 [cited by applicant]
US 20080063937A1 · Lee · 2008 [cited by examiner]
US 20180312634A1 · Chung · 2018 [cited by applicant]
US 20190039617A1 · Miura et al. · 2019 [cited by applicant]
US 20200055879A1 · Johnson et al. · 2020 [cited by applicant]
US 20210147598A1 · Johnson et al. · 2021 [cited by applicant]
US 20210284664A1 · Johnson et al. · 2021 [cited by applicant]
US 20220251288A1 · Johnson et al. · 2022 [cited by applicant]
US 20240270898A1 · Johnson et al. · 2024 [cited by applicant]
WO WO2017208209A1 · 2017 [cited by applicant]
WO WO2020037236A1 · 2020 [cited by applicant]
WO WO2022099210A1 · 2022 [cited by applicant]
WO WO2022212752A1 · 2022 [cited by applicant]
International Search Report and Written Opinion for PCT/US2019/046872, mailed on Oct. 29, 2019. [cited by applicant]
International Preliminary Report on Patentability for PCT/US2019/046872, mailed on Mar. 4, 2021. [cited by applicant]
International Search Report and Written Opinion for Application No. PCT/US2020/050927 mailed Jan. 21, 2021. [cited by applicant]
International Preliminary Report on Patentability for PCT/US2020/050927, mailed on May 27, 2022. [cited by applicant]
International Search Report and Written Opinion for Application No. PCT/US2021/061135 mailed Apr. 28, 2022. [cited by applicant]
Invitation to Pay Additional Fees for Application No. PCT/US2021/058668 mailed Jan. 10, 2022. [cited by applicant]
International Search Report and Written Opinion for Application No. PCT/US2021/058668 mailed Mar. 10, 2022. [cited by applicant]
Invitation to Pay Additional Fees for Application No. PCT/US2022/031759 mailed Aug. 16, 2022. [cited by applicant]
International Search Report and Written Opinion for Application No. PCT/US2022/031759 mailed Aug. 8, 2022. [cited by applicant]
International Preliminary Report on Patentability for Application No. PCT/US2023/062223 mailed Aug. 22, 2024. [cited by applicant]
[No Author Listed], Dimethyl-[(1R)-1-naphthalen-1-yl-2-[(2-naphthalen-2-yloxyacetyl)amino]ethyl]azanium. PubChem CID No. 8701426. Feb. 12, 2015. Retrieved from <https://pubchem.ncbi.nlm.nih.gov/compound/8701426> on Nov.… [cited by applicant]
Asaro et al., Recycling of rubber wastes by devulcanization. Res Conserv Rec. Jun. 2018;133:250-62. doi: 10.1016/j.resconrec.2018.02.016. [cited by applicant]
Autenrieth et al., Stereospecific Ring-Opening Metathesis Polymerization (ROMP) of endo-Dicyclopentadiene by Molybdenum and Tungsten Catalysts. Macromolecules. Apr. 2015;48(8):2480-92. doi: 10.1021/acs.macromol.5b00123. [cited by applicant]
Bang et al., Polydicyclopentadiene aerogels from first- versus second-generation Grubbs' catalysts: a molecular versus a nanoscopic perspective. J Sol-Gel Sci Technol. 2015;75(2):460-74. doi: 10.1007/s10971-015-3718-0. [cited by applicant]
Blackmore, P.M., Synthesis and properties of stereoregular fluoropolymers. Doctoral thesis at Durham University. 1986. pp. i-iii, 46, 62. Accessed from <http://etheses.dur.ac.uk/6795/>. [cited by applicant]
Boadi et al., Alternating Ring-Opening Metathesis Polymerization Provides Easy Access to Functional and Fully Degradable Polymers. Macromolecules. Jul. 28, 2020;53(14):5857-5868. doi: 10.1021/acs.macromol.0c01051. Epub … [cited by applicant]
Capelot et al., Catalytic Control of the Vitrimer Glass Transition. ACS Macro Lett. Jul. 17, 2012;1(7):789-792. doi: 10.1021/mz300239f. Epub Jun. 11, 2012. [cited by applicant]
Chen et al., Thermally Crosslinked Functionalized Polydicyclopentadiene with a High T [cited by applicant]
Christensen et al., Closed-loop recycling of plastics enabled by dynamic covalent diketoenamine bonds. Nat Chem. May 2019;11(5):442-448. doi: 10.1038/s41557-019-0249-2. Epub Apr. 22, 2019. [cited by applicant]
Cole et al., Microplastics as contaminants in the marine environment: A review. Mar Pol Bull. Dec. 2011;62(12):2588-97. doi: 10.1016/j.marpolbul.2011.09.025. [cited by applicant]
Corey et al., Diisopropylsilyl ditriflate and di-tert-butysilyl ditriflate: new reagents for the protection of diols. Tetrahedron Letters. 1982;23(47):4871-4874. [cited by applicant]
Corma et al., Formation and Hydrolysis of Acetals Catalysed by Acid Faujasites. Appl Catal. 1990;59:333-40. [cited by applicant]
Cuthbert et al., Structure of the Thermally Induced Cross-Link in C-Linked Methyl Ester-Functionalized Polydicyclopentadiene (fPDCPD). Macromolecules. Feb. 28, 2018;51(5):2038-47. doi: 10.1021/acs.macromol.7b02750. [cited by applicant]
Davidson et al., Polymerization of Dicyclopentadiene: A Tale of Two Mechanisms. Macromolecules. 1996;29:786-8. [cited by applicant]
Davies et al., Protection of hydroxy groups by silylation: use in peptide synthesis and as lipophilicity modifiers for peptides. J Chem Soc Perkin Trans. 1;1992:3043-8. doi: 10.1039/P19920003043. [cited by applicant]
Defauchy et al., Kinetic analysis of polydicyclopentadiene oxidation. Polym Degrad Stab. Aug. 2017;142:169-77. doi: 10.1016/j.polymdegradstab.2017.06.005. [cited by applicant]
Delancey et al., Controlling crosslinking in thermosets via chain transfer with monoterpenes. Polym Chem. Jun. 20, 2011;49(17):3719-27. doi: 10.1002/pola.24808. [cited by applicant]
Dong et al., A Simple and Versatile Method for the Formation of Acetals/Ketals Using Trace Conventional Acids. ACS Omega. May 7, 2018;3(5):4974-4985. doi: 10.1021/acsomega.8b00159. [cited by applicant]
Elder et al., Nanovoid formation and mechanics: a comparison of poly(dicyclopentadiene) and epoxy networks from molecular dynamics simulations. Soft Matter. 2016;12:4418-34. doi: 10.1039/C6SM00691D. [cited by applicant]
Fedorenko et al., Facial selectivity in the reaction of dihalocarbenes with 2-substituted 4,7-dihydro-1,3-dioxepines. Mendeleev Comm. May 29, 2007;17:170-1. doi: 10.1016/J.MENCOM.2007.05.013. [cited by applicant]
Feist et al., Enol Ethers Are Effective Monomers for Ring-Opening Metathesis Polymerization: Synthesis of Degradable and Depolymerizable Poly(2,3-dihydrofuran). J Am Chem Soc. Dec. 27, 2019;142(3):1186-9. doi: 10.1021/j… [cited by applicant]
Flory, P.J., Molecular Size Distribution in Three Dimensional Polymers. I. Gelation. J Am Chem Soc. Nov. 1, 1941;63(11):3083-90. doi: 10.1021/ja01856a061. [cited by applicant]
Fortman et al., Approaches to Sustainable and Continually Recyclable Cross-Linked Polymers. ACS Sus Chem Eng. Aug. 26, 2018;6(9):11145-59. doi: 10.1021/acssuschemeng.8b02355. [cited by applicant]
Fortman et al., Mechanically activated, catalyst-free polyhydroxyurethane vitrimers. J Am Chem Soc. Nov. 11, 2015;137(44):14019-22. doi: 10.1021/jacs.5b08084. Epub Nov. 2, 2015. [cited by applicant]
Fraser et al., Degradable Cyclooctadiene/Acetal Copolymers: versatile Precursors to 1,4-Hydroxytelechelic Polybutadiene and Hydroytelechelic Polyethylene. Macromolecules. Oct. 9, 1995;28(21):7256-61. doi: 10.1021/ma0012… [cited by applicant]
Frauenrath et al., Synthesis of 2,3-substituted tetrahydropyrans by rearrangement of 5,6-dihydro-4H-1,3-dioxocins. Tetrahedron Lett. Jan. 1, 1990;31(5):649-50. doi: 10.1016/S0040-4039(00)94591-X. [cited by applicant]
Furstner et al., Alkyne metathesis: development of a novel molybdenum-based catalyst system and its application to the total synthesis of epothilone A and C. Chemistry. Dec. 17, 2001;7(24):5299-317. doi: 10.1002/1521-37… [cited by applicant]
Furstner et al., Mo[N(t-Bu)(Ar)] [cited by applicant]
Gallivan et al., A neutral, water-soluble olefin metathesis catalyst based on an N-heterocyclic carbene ligand. Tetrahedron Lett. Apr. 11, 2005;46(15):2577-80. doi: 10.1016/j.tetlet.2005.02.096. [cited by applicant]
Grubbs et al., Ring-Closing Metathesis and Related Processes in Organic Synthesis. Acc Chem Res. Nov. 1, 1995;28(11):446-52. doi: 10.1021/ar00059a002. [cited by applicant]
Gu et al., A (Macro)Molecular-Level Understanding of Polymer Network Topology. Trends Chem. Jun. 2019;1(3):318-34. doi: 10.1016/j.trechm.2019.02.017. [cited by applicant]
Gu et al., A unifying review of polymer networks: from rubbers and gels to porous frameworks. Angew Chemie Int Ed. Jul. 2019;59(13):5022-49. doi: 0.1002/anie.201902900. Author Manuscript, 66 pages. [cited by applicant]
Gu et al., Mechanism of the reactions of dimethylsilylene with oxetanes. J. Am. Chem. Soc. 1980, 102, 5, 1641-1644. [cited by applicant]
Gu et al., Polymer Networks: From Plastics and Gels to Porous Frameworks. Angew Chem Int Ed Engl. Mar. 23, 2020;59(13):5022-5049. doi: 10.1002/anie.201902900. Epub Jan. 15, 2020. [cited by applicant]
Hann et al., The impact of the use of “oxo-degradable” plastic on the environment. European Commission, Directorate-General for Environment. Sep. 20, 2016. doi: 10.2779/992559. 150 pages. [cited by applicant]
Hartley et al., Photochemistry of Ketone Polymers. II. Studies of Model Compounds. Macromolecules. Sep. 1, 1968;1(5):413-7. doi: 10.1021/ma60005a009. [cited by applicant]
Herges et al., Synthesis and Fragmentation of 2,2-Diazido-1,3,2-dioxasila-5-cycloheptenes. The Chemical Vapor Deposition of SiO2. J Am Chem Soc. Dec. 18, 1996;18(50):12752-7. doi: 10.1021/ja9615886. [cited by applicant]
Hilf et al., End Capping Ring-Opening Olefin Metathesis Polymerization Polymers with Vinyl Lactones. J Am Chem Soc. Jul. 23, 2008;130(33):11040-8. doi: 10.1021/ja8022863. [cited by applicant]
Hilf et al., Heterotelechelic Ring-Opening Metathesis Polymers. Macromolecules. Nov. 16, 2009;43(1):208-12. doi: 10.1021/ma902074y. [cited by applicant]
Hilf et al., Monofunctional metathesis polymers via sacrificial diblock copolymers. Angew Chem Int Ed Engl. Dec. 4, 2006;45(47):8045-8. doi: 10.1002/anie.200602323. [cited by applicant]
Hilf et al., Sacrificial Synthesis of Hydroxy-Telechelic Metathesis Polymers via Multiblock-Copolymers. Macromolecules. Feb. 24, 2009;42(4):1099-106. doi: 10.1021/ma802440k. [cited by applicant]
Hoye et al., Silicon tethered ring-closing metathesis reactions for self- and cross-coupling of alkenols. Tetrahedron Letters. Feb. 19, 1999;40(8):1429-1432. [cited by applicant]
Hu et al., Thermal oxidation aging of polydicyclopentadiene and composites. Polym Comp. Jun. 21, 2016;39(5):1742-51. doi: 10.1002/pc.24125. [cited by applicant]
Huang et al., Thermal oxidation of Poly(dicyclopentadiene)-kinetic modeling of double bond consumption. Polym Degrad Stab. Aug. 2019;166:258-71. doi: 10.1016/j.polymdegradstab.2019.06.003. [cited by applicant]
Kaburagi et al., Operationally simple and efficient workup procedure for TBAF-mediated desilylation: application to halichondrin synthesis. Org Lett. Feb. 15, 2007;9(4):723-6. doi: 10.1021/01063113h. [cited by applicant]
Kawamoto et al., Loops versus Branch Functionality in Model Click Hydrogels. Macromolecules. Dec. 1, 2015;48(24):8980-88. doi: 10.1021/acs.macromol.5b02243. [cited by applicant]
Kessler et al., Cure kinetics of the ring-opening metathesis polymerization of dicyclopentadiene. J Polym Sci Part A: Polym Chem. May 30, 2002;40:2373-83. doi: 10.1002/pola.10317. [cited by applicant]
Klimovitskii et al., Conformational isomerism in 3,5,8-trioxabicyclo[5.1.0]octane and its diastereomeric 4-methyl derivatives. A combined IR, X-ray and ab initio study. J Mol Struc. Feb. 28, 2007;828(1-3):147-53. doi: 1… [cited by applicant]
Kloxin et al., Covalent Adaptable Networks (CANs): A Unique Paradigm in Crosslinked Polymers. Macromolecules. Mar. 23, 2010;43(6):2643-2653. doi: 10.1021/ma902596s. [cited by applicant]
Kovacic et al., Ring-opening Metathesis Polymerisation derived poly(dicyclopentadiene) based materials. Mater Chem Front. Jun. 4, 2020;4:2235-55. doi: 10.1039/D0QM00296H. [cited by applicant]
Lexer et al., Acrylates as termination reagent for the preparation of semi-telechelic polymers made by ring opening metathesis polymerization. J Polym Sci Part A: Polym Chem. Jan. 1, 2009;47(1):299-305. doi: 10.1002/pol… [cited by applicant]
Li et al., Reprocessable Polymer Networks via Thiourethane Dynamic Chemistry: Recovery of Cross-link Density after Recycling and Proof-of-Principle Solvolysis Leading to Monomer Recovery. Macromolecules. Oct. 22, 2019;5… [cited by applicant]
Li et al., Vitrimers Designed Both to Strongly Suppress Creep and to Recover Original Cross-Link Density after Reprocessing: Quantitative Theory and Experiments. Macromolecules. Jul. 17, 2018;51(15):5537-46. doi: 10.102… [cited by applicant]
Liu et al., “Brush-first” method for the parallel synthesis of photocleavable, nitroxide-labeled poly(ethylene glycol) star polymers. J Am Chem Soc. Oct. 3, 2012;134(39):16337-44. doi: 10.1021/ja3067176. Epub Sep. 24, 2… [cited by applicant]
Liu et al., Particles without a box: brush-first synthesis of photodegradable PEG star polymers under ambient conditions. J Vis Exp. Oct. 10, 2013;(80):50874. doi: 10.3791/50874. [cited by applicant]
Long et al., Ballistic Response of Polydicyclopentadiene vs. Epoxy Resins and Effects of Crosslinking. In: Dynamic Behavior of Materials, vol. 1. Conference Proceedings of the Society for Experimental Mechanics. Chapter… [cited by applicant]
Ma et al., Degradable thermosets based on labile bonds or linkages: A review. Prog Polym Sci. Jan. 2018;76:65-110. doi: 10.1016/j.progpolymsci.2017.07.008. [cited by applicant]
Machida et al., Efficient approach to medium-sized cyclic molecules containing (E)-Alkene via z to e photochemical isomerization in the presence of AgNO [cited by applicant]
Macosko et al., A new derivation of average molecular weights of nonlinear polymers. Macromolecules. Mar.-Apr. 1976;9(2):199-206. doi: 10.1021/ma60050a003. [cited by applicant]
Mathers et al., Functional Hyperbranched Polymers Using Ring-Opening Metathesis Polymerization of Dicyclopentadiene with Monoterpenes. Macromolecules. Feb. 10, 2009;42(5):1512-8. doi: 10.1021/ma802441t. [cited by applicant]
Moatsou et al., Degradable precision polynorbornenes via ring-opening metathesis polymerization. J Polym Sci Part A: Polym Chem. May 1, 2016;54(9):1236-42. doi: 10.1002/pola.27964. [cited by applicant]
Mohite et al., Polydicyclopentadiene aerogels grafted with PMMA: I. Molecular and interparticle crosslinking. Soft Matter. Dec. 6, 2012;9:1516-30. doi: 10.1039/C2SM26931G. [cited by applicant]
Montarnal et al., Silica-like malleable materials from permanent organic networks. Science. Nov. 18, 2011;334(6058):965-8. doi: 10.1126/science.1212648. [cited by applicant]
Nagarkar et al., End functional ROMP polymers via degradation of a ruthenium Fischer type carbene. Chem Sci. Sep. 2, 2014;5(12):4687-92. doi: 10.1039/C4SC02242D. [cited by applicant]
Ogata et al., Scissionable polymer resists for extreme ultraviolet lithography. Proceedings of the SPIE, Extreme Ultraviolet (EUV) Lithography. Mar. 22, 2010;7636:763634/1. doi: 10.1117/12.847320. [cited by applicant]
Parker et al., Halogen radicals contribute to photooxidation in coastal and estuarine waters. Proc Natl Acad Sci U S A. May 24, 2016;113(21):5868-73. doi: 10.1073/pnas.1602595113. Epub May 9, 2016. [cited by applicant]
Parrott et al., Tunable bifunctional silyl ether cross-linkers for the design of acid-sensitive biomaterials. J Am Chem Soc. Dec. 22, 2010;132(50):17928-32. doi: 10.1021/ja108568g. Epub Nov. 24, 2010. [cited by applicant]
Perring et al., Epoxidation of the surface of polydicyclopentadiene for the self-assembly of organic monolayers. J Mater Chem. Sep. 8, 2010;20:8679-85. doi: 10.1039/C0JM01999B. [cited by applicant]
Post et al., A Review on the Potential and Limitations of Recyclable Thermosets for Structural Applications. Polym Rev. Oct. 8, 2019;60(2):359-88. doi: 10.1080/15583724.2019.1673406. [cited by applicant]
Prévost et al., Strained organosilacyclic compounds: synthesis of anti-Bredt olefins and trans-dioxasilacyclooctenes. Dalton Trans. Oct. 21, 2010;39(39):9275-81. doi: 10.1039/c003227a. Epub Jul. 8, 2010. [cited by applicant]
Reddy et al., Mechanism of cyclic acetal formation. Tetrahedron. 1982;38(12):1825-6. doi: 10.1016/0040-4020(82)80257-3. [cited by applicant]
Robertson et al., Alkyl Phosphite Inhibitors for Frontal Ring-Opening Metathesis Polymerization Greatly Increase Pot Life. ACS Macro Lett. Jun. 20, 2017;6(6):609-612. doi: 10.1021/acsmacrolett.7b00270. Epub May 24, 2017. [cited by applicant]
Robertson et al., Frontal Ring-Opening Metathesis Polymerization of Exo-Dicyclopentadiene for Low Catalyst Loadings. ACS Macro Lett. May 17, 2016;5(5):593-596. doi: 10.1021/acsmacrolett.6b00227. Epub Apr. 25, 2016. [cited by applicant]
Robertson et al., Rapid energy-efficient manufacturing of polymers and composites. Nature. May 9, 2018;557:223-7. doi: 10.1038/s41586-018-0054-x. [cited by applicant]
Rohde et al., Thermoset Blends of an Epoxy Resin and Polydicyclopentadiene. Macromolecules. Nov. 30, 2016;49(23):8960-70. doi: 10.1021/acs.macromol.6b01649. [cited by applicant]
Rule et al., ROMP Reactivity of endo- and exo-Dicyclopentadiene. Macromolecule. Sep. 6, 2002;35:7878-82. doi: 10.1021/MA0209489. [cited by applicant]
Röttger et al., High-performance vitrimers from commodity thermoplastics through dioxaborolane metathesis. Science. Apr. 7, 2017;356(6333):62-65. doi: 10.1126/science.aah5281. [cited by applicant]
Saha et al., Cross-linked ROMP polymers based on odourless dicyclopentadiene derivative. Polym Chem. Apr. 14, 2016;7:3071-5. doi: 10.1039/C6PY00378H. [cited by applicant]
Sanda et al., Vinylcyclopropanone Cyclic Acetal-Synthesis, Polymerization, Structure of the Polymer and Mechanism of the Polymerization. Macromolecules. Feb. 1994;27(5):1099-111. doi: 10.1021/ma00083a006. [cited by applicant]
Schrock et al., Tungsten(VI) neopentylidyne complexes. Organometallics. Dec. 1, 1982;1(12):1645-51. doi: 10.1021/om00072a018. [cited by applicant]
Sheng et al., The influence of cross-linking agents on ring-opening metathesis polymerized thermosets. J Thermal Analys Calorimet. Jul. 19, 2007;89(2):459-64. doi: 10.1007/s10973-006-8468-3. [cited by applicant]
Shieh et al., Cleavable comonomers enable degradable, recyclable thermoset plastics. Nature. Jul. 2020;583(7817):542-547. doi: 10.1038/s41586-020-2495-2. Epub Jul. 22, 2020. Erratum in: Nature. Sep. 2020;585(7823):E4. S… [cited by applicant]
Shieh et al., A Comonomer Strategy for Triggered Degradation and Re/Upcycling of High-Performance Thermoset Plastics. Dec. 13, 2019. 18 pages. Accessed Dec. 27, 2022 from <https://chemrxiv.org/engage/chemrxiv/article-de… [cited by applicant]
Shieh et al., Tailored silyl ether monomers enable backbone-degradable polynorbornene-based linear, bottlebrush and star copolymers through ROMP. Nat Chem. Dec. 2019;11(12):1124-1132. doi: 10.1038/s41557-019-0352-4. Epu… [cited by applicant]
Snyder et al., Reprocessable Acid-Degradable Polycarbonate Vitrimers. Macromolecules. Jan. 4, 2018;51(2):389-97. doi: 10.1021/acs.macromol.7b02299. [cited by applicant]
Sommazzi et al., Olefin-carbon monoxide copolymers. Prog Polym Sci. 1997;22(8):1547-605. doi: 10.1016/S0079-6700(97)00009-9. [cited by applicant]
Stockmayer et al., Theory of Molecular Size Distribution and Gel Formation in Branched Polymers II. General Cross Linking. J Chem Phys. Apr. 1944;12(4):125-31. doi: 10.1063/1.1723922. [cited by applicant]
Takahashi et al., Degradable epoxy resins prepared from diepoxide monomer with dynamic covalent disulfide linkage. Polymer. Jan. 15, 2016;82:319-26. doi: 10.1016/J.POLYMER.2015.11.057. [cited by applicant]
Takayama et al., Topographical Micropatterning of Poly(dimethylsiloxane) Using Laminar Flows of Liquids in Capillaries. Adv Mater. Apr. 18, 2001;13(8):570-4. doi: 10.1002/1521-4095(200104)13:8<570 ::AID-ADMA570>3.0.CO;2… [cited by applicant]
Tanino et al., Control of Stereochemistry by sigma-Participation of a Silyl Group. A Novel Method for Diastereoselective Polyol Synthesis. J Org Chem. Jun. 27, 1997;62(13):4206-4207. doi: 10.1021/jo9703515. PMID: 116717… [cited by applicant]
Tomooka et al., Planar chiral dialkoxysilane:introduction of inherent chirality and high reactivity in conventional achiral alkene. Chemistry. Jun. 16, 2014;20(25):7598-602. doi: 10.1002/chem.201402434. Epub May 6, 2014. [cited by applicant]
Li et al., Copolymers of Functionalized and Nonfunctionalized Polydicyclopentadiene. ACS Applied Polymer Materials. Jan. 8, 2021;3(1):110-115. [cited by applicant]
Tournier et al., An engineered PET depolymerase to break down and recycle plastic bottles. Nature. Apr. 2020;580(7802):216-219. doi: 10.1038/s41586-020-2149-4. Epub Apr. 8, 2020. [cited by applicant]
Veysset et al., Dynamics of supersonic microparticle impact on elastomers revealed by real-time multi-frame imaging. Sci Rep. May 9, 2016;6:25577. doi: 10.1038/srep25577. Erratum in: Sci Rep. Feb. 16, 2018;8:46944. [cited by applicant]
Wang et al., Counting loops in sidechain-crosslinked polymers from elastic solids to single-chain nanoparticles. Chem Sci. May 1, 2019;10(20):5332-5337. doi: 10.1039/c9sc01297d. [cited by applicant]
Wang et al., Counting Secondary Loops is Required for Accurate Prediction of End-Linked Polymer Network Elasticity. ACS Macro Lett. Feb. 6, 2018;7(2):244-9. doi: 10.1021/acsmacrolett.8b00008. [cited by applicant]
Wang et al., Readily recyclable carbon fiber reinforced composites based on degradable thermosets: a review. Green Chem. Sep. 19, 2019;21(21):5781-96. doi: 10.1039/C9GC01760G. [cited by applicant]
Wiles et al., Polyolefins with controlled environmental degradability. Polym Degrad Stab. Jul. 2006;91(7):1581-92. doi: 10.1016/j.polymdegradstab.2005.09.010. [cited by applicant]
Winne et al., Dynamic covalent chemistry in polymer networks: a mechanistic perspective. Polym Chem. Oct. 16, 2019;10:6091-108. doi: 10.1039/C9PY01260E. [cited by applicant]
Yang et al., Curing Kinetics and Mechanical Properties of endo-Dicyclopentadiene Synthesized Using Different Grubbs' Catalysts. Ind Eng Chem Res. Jan. 28, 2014;53(8):3001-11. doi: 10.1021/ie403285q. [cited by applicant]
Yang et al., Curing study of dicyclopentadiene resin and effect of elastomer on its polymer network. Polymer. Mar. 1997;38(5):1121-30. doi: 10.1016/S0032-3861(96)00599-X. [cited by applicant]
Yang et al., Reworkable Epoxies: Thermosets with Thermally Cleavable Groups for Controlled Network Breakdown. Chem Mater. Jun. 1998;10(6):1475-82. [cited by applicant]
Zhang et al., Loading dependent swelling and release properties of novel biodegradable, elastic and environmental stimuli-sensitive polyurethanes. J Control Release. Oct. 21, 2008;131(2):128-36. doi: 10.1016/j.jconrel.2… [cited by applicant]
Zhong et al., Quantifying the impact of molecular defects on polymer network elasticity. Science. Sep. 16, 2016;353(6305):1264-8. doi: 10.1126/science.aag0184. [cited by applicant]
Zhou et al., Counting primary loops in polymer gels. Proc Natl Acad Sci U S A. Nov. 20, 2012;109(47):19119-24. doi: 10.1073/pnas.1213169109. Epub Nov. 6, 2012. [cited by applicant]