A Facile and General Approach to Recoverable High-Strain Multishape Shape Memory Polymers

作者：Li, Xingjian; Pan, Yi; Zheng, Zhaohui; Ding, Xiaobin^*

来源：Macromolecular Rapid Communications, 2018, 39(6): 1700613.

DOI：10.1002/marc.201700613

• highly recoverable strain
• multishape memory effects
• shape memory polymers
• wide glass transition

Fabricating a single polymer network with no need to design complex structures to achieve an ideal combination of tunable high-strain multiple-shape memory effects and highly recoverable shape memory property is a great challenge for the real applications of advanced shape memory devices. Here, a facile and general approach to recoverable high-strain multishape shape memory polymers is presented via a random copolymerization of acrylate monomers and a chain-extended multiblock copolymer crosslinker. As-prepared shape memory networks show a large width at the half-peak height of the glass transition, far wider than current classical multishape shape memory polymers. A combination of tunable high-strain multishape memory effect and as high as 1000% recoverable strain in a single chemical-crosslinking network can be obtained. To the best of our knowledge, this is the first thermosetting material with a combination of highly recoverable strain and tunable high-strain multiple-shape memory effects.

• 出版日期2018-3
• 单位中国科学院大学; 中国科学院成都有机化学有限公司