IP Library Granted Patent US 8,420,768
Granted Patent B2
US 8,420,768 · App. 12/973,513 · Granted Apr 16, 2013

Polymerizable higher diamondoid derivatives

Inventors: Jeremy E. Dahl (Palo Alto, CA); Robert M. Carlson (Petaluma, CA); Shenggao Liu (Hercules, CA)
Assignee: Chevron U.S.A. Inc.
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Quick Facts
Patent No.
US 8,420,768
App. No.
12/973,513
Granted
Apr 16, 2013
Kind
B2
Abstract

Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.

Claims (17)

1. A method of obtaining a polymer comprising:

i) subjecting a higher diamondoid derivative containing one or two covalently-attached moiety replacing a hydrogen, which moiety is a polymerizable moiety or is converted to a polymerizable moiety, to polymerization conditions thereby forming a polymerization reaction product containing a higher diamondoid containing polymer; and

ii) isolating the polymer from the polymerization reaction product,

wherein the higher diamondoid derivative has the formula:

wherein

D is a higher diamondoid nucleus, and

R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from the group consisting of hydrogen and a polymerizable moiety; provided one or two of the R's is a polymerizable moiety.

2. A method of obtaining a polymer in accordance with claim 1 , wherein the polymerizable moieties are selected from alkenyl, alkynyl, OH, C 2 H 3 O, SH, NH 2 , CO 2 H, C 6 H 5 , C 6 H 4 NH 2 , C 6 H 4 CO 2 H or C 6 H 4 OH .

3. A method of obtaining a polymer in accordance with claim 1 , wherein the polymerizable moiety has the structure:

—(X) m —(Y) n —Z

wherein

X is O, NR 7 , OC(O), NR 8 C(O), C(O)O or C(O)NR 9 , wherein R 7 , R 8 and R 9 are independently hydrogen or alkyl;

Y is alkylene, arylene, alkarylene, heteroarylene or alkheteroarylene;

Z is alkenyl, alkynyl, OH, C 2 H 3 O, SH, NH 2 , CO 2 H, C 6 H 5 , C 6 H 4 NH 2 , C 6 H 4 CO 2 H or C 6 H 4 OH

m is 0 or 1; and,

n is 0 or 1.

4. A higher diamondoid polymer comprising, as a recurring unit, a higher diamondoid derivative having one or two derivatizing moieties attached to the higher diamondoid, said derivatizing moiety covalently bonding the higher diamondoid into the polymer through an ester linkage, an amide linkage, or an ether linkage.

Continuity (5)
Division 11013638 · Dec 17, 2004
Division 10046486 · Jan 16, 2002
Provisional Application 60262842 · Jan 19, 2001
Provisional Application 60334939 · Dec 4, 2001
Related Publication 20110112258A1 · May 12, 2011