CPC C08J 9/286 (2013.01) [C08G 73/1007 (2013.01); C08G 73/1067 (2013.01); C08G 73/1085 (2013.01); C08J 9/36 (2013.01); C08K 5/09 (2013.01); C08K 5/3432 (2013.01); C08J 2201/0422 (2013.01); C08J 2201/0482 (2013.01); C08J 2205/026 (2013.01); C08J 2205/042 (2013.01); C08J 2205/044 (2013.01); C08J 2379/08 (2013.01)] | 34 Claims |
1. A method of forming a polyimide gel, the method comprising:
a) providing a tetracarboxylic acid dianhydride and a multifunctional amine;
b) adding the tetracarboxylic acid dianhydride and the multifunctional amine to an organic solvent to form a solution;
c) allowing the tetracarboxylic acid dianhydride and the multifunctional amine to react in solution, forming a solution of a polyamic acid sol;
d) adding a dehydrating agent, a monoamine, and water to the solution of the polyamic acid sol, forming a gelation mixture and allowing the gelation mixture to gel to form the polyimide gel, wherein the water is added at a molar ratio of water to the tetracarboxylic acid dianhydride from about 5 to about 500.
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