Porous co-polymeric gel compositions, porous carbon compositions, and methods for synthesis thereof
AssigneeAspen Aerogels, Inc.
InventorsNicholas Leventis, Chariklia Sotiriou-Leventis, Malik Adnan Saeed
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Abstract
The present invention discloses novel porous polymeric compositions comprising random copolymers of amides, imides, ureas, and carbamic-anhydrides, useful for the synthesis of monolithic bimodal microporous/macroporous carbon aerogels. It also discloses methods for producing said microporous/macroporous carbon aerogels by the reaction of a polyisocyanate compound and a polycarboxylic acid compound, followed by pyrolytic carbonization, and by reactive etching with CO2 at elevated temperatures. Also disclosed are methods for using the microporous/macroporous carbon aerogels in the selective capture and sequestration of carbon dioxide.
Claims17
A porous co-polymeric composition comprising:
- gels and/or aerogels having a formula:
- wherein G1 is a moiety selected from C1-C10 straight chain alkyl or branched alkyl or cycloalkyl, alkylaryl, aryl, heteroalkyl, heterocyclylalkyl, or heteroaryl, each of which is optionally substituted;
- G2 is a moiety selected from alkyl, cycloalkyl, heteroalkyl, heterocylcoalkyl, alkylaryl, cycloalkylaryl, alkylheteroaryl, cycloalkylheteroaryl, an arene ring system, or a heteroarene ring system, each of which is optionally substituted;
- L5, L6, and L7 each represent one or more linkages selected from the group consisting of an amide moiety, an imide moiety, a urea moiety, and combinations thereof, present in any random order, wherein formula (Ib) includes at least one of the amide moiety, at least one of the imide moiety, and at least one of the urea moiety;
- s, t, and u are integers independently ranging from 1 to 10;
- and,
- p is an integer ranging from 1 to about 500.
Dependencies are inferred from the claim text.