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Photomechanical Switching Behavior of Semi‐Interpenetrating Polymer Network Consisting of Azobenzene‐Carrying Crosslinked Poly(vinyl ether) and Polycarbonate
Author(s) -
Kim HyunKyoung,
Wang XiaoShui,
Fujita Yukihiro,
Sudo Atsushi,
Nishida Haruo,
Fujii Masayuki,
Endo Takeshi
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500209
Subject(s) - azobenzene , polycarbonate , cationic polymerization , materials science , polymer chemistry , polymer , copolymer , interpenetrating polymer network , vinyl ether , ether , composite material , chemistry , organic chemistry
Summary: A novel semi‐interpenetrating polymer network (semi‐IPN) with photomechanical switching ability was developed by a cationic copolymerization of azobenzene‐containing vinyl ethers in a matrix of a linear polycarbonate (PC). The semi‐IPN film showed reversible deformation upon switching the UV irradiation on and off and responded with unprecedented rapidity. The photomechanical effect is attributed to a reversible change between the highly aggregated and dissociated states of the azobenzene groups.The reversible UV response of the length of the semi‐IPN film at 25 °C.