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Facile fabrication of CDs / PVA composite polymer to access light-responsive shape-memory effects

Abstract

Stimuli-responsive shape-memory materials are a category of fascinating smart material, which have convertible shape transformation as the environment changed. Among the large number of stimuli-responsive shape-memory materials, light-driving material have sparked tremendous attention because of the stability, remote operability and green renewability. Herein, we report a novel strategy of light-responsive shape-memory polymer that made from carbon dots and polyvinyl alcohol composition. The prepared carbon dots have well visible light absorption and excellent photo-thermal conversion, which enable the carbon dots/polyvinyl alcohol composite polymer to serve as light-responsive shape-memory polymer. The carbon dots not merely work as photothermal agent but also offer an extra hydrogen bond, which accelerate the rate of shape-memory recovery. The results show that the composite polymer can realize shape recovery using relatively little laser power. Most importantly, the prepared carbon dots/polyvinyl alcohol composite polymer not only possess greatly research potential in different kinds of medical and sensing fields, but also provides a utility and economic strategy to take advantage of light.

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Supplementary files

Article information


Submitted
21 Feb 2020
Accepted
18 May 2020
First published
18 May 2020

J. Mater. Chem. C, 2020, Accepted Manuscript
Article type
Paper

Facile fabrication of CDs / PVA composite polymer to access light-responsive shape-memory effects

S. Wu, W. Li, Y. Sun, X. Pang, X. Zhang, J. Zhuang, H. Zhang, C. Hu, B. Lei and Y. Liu, J. Mater. Chem. C, 2020, Accepted Manuscript , DOI: 10.1039/D0TC00910E

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