A Facile and General Approach to Recoverable High‐Strain Multishape Shape Memory Polymers. Issue 6 (2nd January 2018)

• Record Type: Journal Article
• Authors: Li, Xingjian; Pan, Yi; Zheng, Zhaohui; Ding, Xiaobin
• Is Part Of: Macromolecular rapid communications. Volume 39:Issue 6(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-01-02
• Subjects: highly recoverable strain -- multishape memory effects -- shape memory polymers -- wide glass transition; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201700613
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract: 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. Abstract : A high‐strain multishape thermosetting shape memory polymer is fabricated for the first time by a random copolymerization of acrylate monomers and a chain‐extended multiblock copolymer crosslinker. The polymer shows a wide glass transition region, tunable high‐strain multishape memory effects, and as high as 1000% recoverable strain.