Issue 4, 2017

Dual-responsive hybrid thermoplastic shape memory polyurethane

Abstract

A urethane-based dual-responsive shape memory polymer (SMP) comprising poly(ethylene glycol) (PEG), poly(ε-caprolactone) (PCL) and poly(dimethylsiloxane) (PDMS) was prepared. Water-responsive SME was achieved through the solvation and recrystallization of PEG switching segments. Thermo-responsive SME of the copolymer at physiological temperature was also demonstrated. The dual-responsive SMP shows promise for biomedical applications in which the physiological environment ensures constant exposure to water for water-triggered actuation with a suitable response time, while the thermally-triggered SME of the copolymer may be utilised to further augment shape recovery.

Graphical abstract: Dual-responsive hybrid thermoplastic shape memory polyurethane

Supplementary files

Article information

Article type
Research Article
Submitted
29 Sept. 2016
Accepted
14 Okt. 2016
First published
03 Nov. 2016

Mater. Chem. Front., 2017,1, 767-779

Dual-responsive hybrid thermoplastic shape memory polyurethane

B. Q. Y. Chan, S. J. W. Heng, S. S. Liow, K. Zhang and X. J. Loh, Mater. Chem. Front., 2017, 1, 767 DOI: 10.1039/C6QM00243A

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