Abstract
Free-radical copolymerization of 4-vinylpyridine (VP) with >5% divinylbenzene (DVB) in [omim]N(SO 2 CF 3 ) 2 , and homopolymerizations of the cross-linking monomers DVB or trimethylolpropane trimethacrylate (TRIM), led to gel-like composite materials. VP copolymers with DVB showed a low degree of permanent porosity in the dry state. However, poly(DVB) and poly(TRIM) (after Soxhlet extraction) have bulk densities, intrusion volumes, BET surface areas and morphology (from SEM studies) which demonstrate the porogenic character of ionic liquids. Poly(DVB) prepared in ionic liquid was characterized by solid-state NMR and showed a higher degree of cross-linking compared with material prepared in toluene.
Published Version
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