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Macromol Rapid Commun. 2018 Mar;39(6):e1700613. doi: 10.1002/marc.201700613. Epub 2018 Jan 2.

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

Author information

1
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.
2
Chengdu Institute of Organic Chemistry, University of Chinese Academy of Sciences, Beijing, 100049, China.

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.

KEYWORDS:

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

PMID:
29292554
DOI:
10.1002/marc.201700613
[Indexed for MEDLINE]

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