Thermoplastic High Strain Multishape Memory Polymer: Side-Chain Polynorbornene with Columnar Liquid Crystalline Phase.

Zhao, Ruiying; Zhao, Tipeng; Jiang, Xuqiang; Liu, Xin; Shi, Dong; Liu, Chenyang; Yang, Shuang; Chen, Er-Qiang · Adv Mater · 2017

basic_science · Level V

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Abstract

A thermoplastic high strain multishape memory polymer can be fabricated using a hemiphasmid side-chain polynorbornene (P1) with hexagonal columnar liquid crystalline (Φ<sub>H</sub> ) phase. Without any chemical crosslinks, P1 can memorize multiple temporary shapes with high strain and exhibit excellent shape fixity and shape recovery. As the building blocks of Φ<sub>H</sub> , the multichain columns in P1 act as robust physical crosslinks.