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Semi‐IPNs with Moisture‐Triggered Shape Memory and Self‐Healing Properties
Author(s) -
Jiang ZhiChao,
Xiao YaoYu,
Kang Yang,
Li BangJing,
Zhang Sheng
Publication year - 2017
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.201700149
Subject(s) - self healing , materials science , methacrylate , acrylate , supramolecular chemistry , moisture , composite material , hydrogen bond , polymer , polymer chemistry , chemical engineering , polymerization , polymer science , molecule , chemistry , copolymer , organic chemistry , medicine , alternative medicine , pathology , engineering
Moisture or water has the advantages of being green, inexpensive, and moderate. However, it is challenging to endow water‐induced shape memory property and self‐healing capability to one single polymer because of the conflicting structural requirement of the two types of materials. In this study, this problem is solved through introducing two kinds of supramolecular interactions into semi‐interpenetrating polymer networks (semi‐IPNs). The hydrogen bonds function as water‐sensitive switches, making the materials show moisture‐induced shape memory effect. The host–guest interactions (β‐cyclodextrin‐adamantane) serve as both permanent phases and self‐healing motifs, enabling further increased chain mobility at the cracks and self‐healing function. In addition, these polyvinylpyrrolidone/poly(hydroxyethyl methacrylate‐ co ‐butyl acrylate) semi‐IPNs also show thermosensitive triple‐shape memory effect.