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Novel Shape‐Memory Polymer Based on Hydrogen Bonding
Author(s) -
Liu Guoqin,
Guan Chunlong,
Xia Hesheng,
Guo Fuquan,
Ding Xiaobin,
Peng Yuxing
Publication year - 2006
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.200600189
Subject(s) - materials science , glass transition , polymer , shape memory polymer , shape memory alloy , ethylene glycol , dynamic mechanical analysis , rod , methyl methacrylate , hydrogen bond , polymer chemistry , modulus , composite material , peg ratio , chemical engineering , molecule , polymerization , chemistry , organic chemistry , medicine , alternative medicine , finance , pathology , engineering , economics
Summary: Due to a large difference in storage modulus below and above the glass transition temperature, a novel shape‐memory poly[(methyl methacrylate)‐ co ‐( N ‐vinyl‐2‐pyrrolidone)]/poly(ethylene glycol) semi‐interpenetrating polymer networks structure was synthesized, which is stabilized by hydrogen‐bonding interactions. The recovery ratio of these polymers could reach 99%. In such a system the maximum molecular weight of PEG required for the semi‐IPNs formation reaches 1 000.Transition from the temporary shape (chem) to the permanent shape (four rods) for a shape‐memory P(MMA‐ co ‐VP)/PEG1000 semi‐IPNs.