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Issue 4, 2017
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Dual-responsive hybrid thermoplastic shape memory polyurethane

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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

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Publication details

The article was received on 29 Sep 2016, accepted on 14 Oct 2016 and first published on 03 Nov 2016

Article type: Research Article
DOI: 10.1039/C6QM00243A
Citation: Mater. Chem. Front., 2017,1, 767-779
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    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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