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New Macroporous Crosslinked Polymer Gels Prepared via Living Radical Polymerization

Published online by Cambridge University Press:  01 February 2011

Kazuyoshi Kanamori ,
Kazuki Nakanishi  and
Teiichi Hanada
Kazuyoshi Kanamori
Affiliation:
[email protected], Kyoto University, Department of Chemistry, Graduate School of Science, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan, +81-75-753-7673, +81-75-753-7673
Kazuki Nakanishi
Affiliation:
[email protected], Kyoto University, Department of Chemistry, Graduate School of Science, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan
Teiichi Hanada
Affiliation:
[email protected], Kyoto University, Department of Chemistry, Graduate School of Science, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan
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Abstract

Macroporous crosslinked polymer gels have been prepared via TEMPO-mediated living radical polymerization of divinylbenzene (DVB) in a solvent with a counter polymer. Incorporating a counter polymer, poly(dimethylsiloxane) (PDMS), induced macroscopic spinodal-type phase separation during the course of polymerization of DVB while suppressing the segregation of DVB-derived particles from the solution by living polymerization. Well-defined macroporous morphologies comprising continuous DVB-derived skeletons have thus obtained. Macropore volume and diameter were independently controlled by altering the concentrations of PDMS and the solvent. Since the present polymer gels are prepared using only the multifunctional “crosslinker”, mechanical durability against bending and compression was found to be as high as inorganic ceramics with similar morphologies and porosities.

Keywords

porositypolymerpolymerization
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 947: Symposium A – Responsive Soft Matter – Chemistry and Physics for Assemblages, Films and Forms , 2006 , 0947-03-27
Copyright
Copyright © Materials Research Society 2007

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