Process for preparing structured organic films (SOFs) via a pre-SOF
View Patent ↗A processes for preparing structured organic film (SOF) comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film by reaction of a pre-SOF.
1. A process for preparing a structured organic film (SOF) comprising:
(a) preparing a liquid-containing reaction mixture comprising:
a plurality of molecular building blocks each comprising a segment and a number of functional groups;
(b) forming a pre-SOF in the reaction mixture;
(c) depositing the reaction mixture and the pre-SOF as a wet film; and
(d) promoting change of the wet film to form a dry SOF.
2. The process of claim 1 , wherein the reaction mixture further comprises a catalyst.
3. The process of claim 2 , wherein the catalyst is selected from the group consisting of Brönsted acids, Lewis acids, Brönsted bases, Lewis bases, free radical initiators, and transition metal complexes.
4. The process of claim 2 , wherein the weight of the catalyst divided by the total weight of the molecular building blocks is from about 0.0001 to about 0.25.
5. The process of claim 1 , wherein forming the pre-SOF comprises heating the reaction mixture in the presence of a catalyst.
6. The process of claim 2 , wherein the catalyst is not present in the dry SOF.
7. The process of claim 2 , wherein the catalyst is present in the dry SOF.
8. The process of claim 1 , wherein forming the pre-SOF comprises heating the reaction mixture at a temperature that is lower than the boiling point of the reaction mixture.
9. The process of claim 1 , wherein forming the pre-SOF comprises exposing the reaction mixture to UV irradiation.
10. The process of claim 1 , wherein the duration of pre-SOF formation lasts about 10 seconds to about 48 hours.
11. The process of claim 1 , wherein the dry SOF is a substantially defect-free film.
12. The process of claim 1 , wherein the dry SOF comprises a plurality of segments including at least a first segment type, a plurality of linkers including at least a first linker type arranged as a covalent organic framework (COF), wherein the first segment type and/or the first linker type comprises at least one atom that is not carbon.
13. A process for preparing a composite structured organic film (SOF) comprising:
(a) preparing a liquid-containing reaction mixture comprising:
a secondary component, and
a plurality of molecular building blocks each comprising a segment and a number of functional groups;
(b) forming a pre-SOF in the reaction mixture;
(c) depositing the reaction mixture and the pre-SOF as a wet film; and
(d) promoting change of the wet film to form a dry SOF that incorporates the secondary component.
14. The process of claim 13 , wherein forming the pre-SOF comprises heating the reaction mixture in the presence of a catalyst.
15. The process of claim 13 , wherein the dry SOF is a substantially defect-free film.
16. The process of claim 13 , wherein the dry SOF comprises a plurality of segments including at least a first segment type, a plurality of linkers including at least a first linker type arranged as a covalent organic framework (COF), wherein the first segment type and/or the first linker type comprises at least one atom that is not carbon.
17. A process for preparing a structured organic film (SOF) comprising:
(a) preparing a liquid-containing reaction mixture comprising:
a first solvent,
a second solvent, and
a plurality of molecular building blocks each comprising a segment and functional groups;
(b) forming a pre-SOF in the reaction mixture;
(c) depositing the reaction mixture and the pre-SOF as a wet film; and
(d) promoting a change of the wet film and forming a dry SOF.
18. The process of claim 17 , wherein forming the pre-SOF comprises heating the reaction mixture in the presence of a catalyst.
19. The process of claim 17 , wherein the dry SOF is a substantially defect-free film.
20. The process of claim 17 , wherein the dry SOF comprises a plurality of segments including at least a first segment type, a plurality of linkers including at least a first linker type arranged as a covalent organic framework (COF), wherein the first segment type and/or the first linker type comprises at least one atom that is not carbon.
21. A process for preparing a structured organic film including an added functionality comprising:
(a) preparing a liquid-containing reaction mixture comprising:
a plurality of molecular building blocks each comprising a segment and functional groups, wherein the molecular building blocks are selected to provide the added functionality in the SOF;
(b) forming a pre-SOF in the reaction mixture;
(c) depositing the reaction mixture and the pre-SOF as a wet film on a substrate; and
(d) promoting a change of the wet film and forming a dry SOF possessing an added functionality.
22. The process of claim 21 , wherein forming the pre-SOF comprises heating the reaction mixture in the presence of a catalyst.
23. The process of claim 21 , wherein the dry SOF is a substantially defect-free film.
24. The process of claim 21 , wherein the dry SOF comprises a plurality of segments including at least a first segment type, a plurality of linkers including at least a first linker type arranged as a covalent organic framework (COF), wherein the first segment type and/or the first linker type comprises at least one atom that is not carbon.