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Preparation of Amazingly Hard polyHIPE material from a Direct Emulsion
Published online by Cambridge University Press: 01 February 2011
Abstract
Interconnected microcellular polymeric monoliths having unexpected high mechanical strength have been prepared using the High Internal Phase Emulsion methodology. Direct concentrated emulsions of aqueous 5-amino-1-vinyl-[1,2,3,4]tetrazole mixed with low molar (5 %) fractions of N,N'-methylenebisacrylamide (MBA) as cross-linking agent were prepared using dodecane as dispersed phase and a mixture of hydrophilic surfactants. “Reverse” polyHIPE materials were obtained after radical copolymerization, solvent extraction and drying. Their morphology, chemical composition and physico-chemical behaviour are discussed.
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- Copyright © Materials Research Society 2010
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