Shape memory polymer network with thermally distinct elasticity and plasticity

被引：426

作者：

Zhao, Qian ^{[1
]}

Zou, Weike ^{[1
]}

Luo, Yingwu ^{[1
]}

Xie, Tao ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Chem & Biol Engn, State Key Lab Chem Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

SCIENCE ADVANCES | 2016年 / 2卷 / 01期

基金：

中国国家自然科学基金;

关键词：

NANOCOMPOSITES;

D O I：

10.1126/sciadv.1501297

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Stimuli-responsive materials with sophisticated yet controllable shape-changing behaviors are highly desirable for real-world device applications. Among various shape-changing materials, the elastic nature of shape memory polymers allows fixation of temporary shapes that can recover on demand, whereas polymers with exchangeable bonds can undergo permanent shape change via plasticity. We integrate the elasticity and plasticity into a single polymer network. Rational molecular design allows these two opposite behaviors to be realized at different temperature ranges without any overlap. By exploring the cumulative nature of the plasticity, we demonstrate easy manipulation of highly complex shapes that is otherwise extremely challenging. The dynamic shape-changing behavior paves a new way for fabricating geometrically complex multifunctional devices.

引用

页数：7

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