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Open AccessArticle
Preparation and Properties of Multi-Responsive Liquid Crystalline Poly(urethane-acrylate)s and Its Composite Membranes
by
Liming Zhou
Liming Zhou ,
Ziwen Wang
Ziwen Wang ,
Lijun Gao
Lijun Gao *,
Hongcheng Yang
Hongcheng Yang and
Shaoming Fang
Shaoming Fang *
School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
*
Authors to whom correspondence should be addressed.
Polymers 2024, 16(13), 1854; https://doi.org/10.3390/polym16131854 (registering DOI)
Submission received: 30 April 2024
/
Revised: 10 June 2024
/
Accepted: 14 June 2024
/
Published: 28 June 2024
Abstract
In this work, a kind of side chain liquid crystalline poly(urethane-acrylate)s was synthesized by free polymerization based on self-made liquid crystalline monomers, and a series of liquid crystalline polyurethane/shape memory polyurethane composite membranes were prepared by electrospinning. The synthesized liquid crystalline poly(urethane-acrylate)s have excellent thermal stability. Due to the regular arrangement of azobenzene on the side chains, polymers can rapidly undergo a photoinduced transition from trans-isomerism to cis-isomerism in THF solution and restore reversible configurational changes under visible light. The composite membranes prepared by electrospinning can also undergo photoinduced deformation within 6 s, and the deformation slowly returns under visible light. Meanwhile, the composites have shape memory, and after deformation caused by stretching, the membranes can quickly recover their original shape under thermal stimulation. These results indicate that the composites have triple response performances of photoinduced deformation, photo-, and thermal recovery.
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MDPI and ACS Style
Zhou, L.; Wang, Z.; Gao, L.; Yang, H.; Fang, S.
Preparation and Properties of Multi-Responsive Liquid Crystalline Poly(urethane-acrylate)s and Its Composite Membranes. Polymers 2024, 16, 1854.
https://doi.org/10.3390/polym16131854
AMA Style
Zhou L, Wang Z, Gao L, Yang H, Fang S.
Preparation and Properties of Multi-Responsive Liquid Crystalline Poly(urethane-acrylate)s and Its Composite Membranes. Polymers. 2024; 16(13):1854.
https://doi.org/10.3390/polym16131854
Chicago/Turabian Style
Zhou, Liming, Ziwen Wang, Lijun Gao, Hongcheng Yang, and Shaoming Fang.
2024. "Preparation and Properties of Multi-Responsive Liquid Crystalline Poly(urethane-acrylate)s and Its Composite Membranes" Polymers 16, no. 13: 1854.
https://doi.org/10.3390/polym16131854
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