Tough self-reporting elastomer with NIR induced shape memory effect

Liulin Yang; Pufan Ouyang; Yuan Chen; Shishuai Xiang; Yonghong Ruan; Wengui Weng; Xumin He; Haiping Xia

Giant (Dec 2021)

Tough self-reporting elastomer with NIR induced shape memory effect

Liulin Yang,
Pufan Ouyang,
Yuan Chen,
Shishuai Xiang,
Yonghong Ruan,
Wengui Weng,
Xumin He,
Haiping Xia

Affiliations

Liulin Yang: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Pufan Ouyang: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Yuan Chen: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Shishuai Xiang: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Yonghong Ruan: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Wengui Weng: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Corresponding authors.
Xumin He: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Corresponding authors.
Haiping Xia: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Corresponding authors.

Journal volume & issue: Vol. 8
p. 100069

Abstract

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Multi-responsive polymers have attracted great attention in materials science. Herein, we report a tough self-reporting polyurethane elastomer with near infrared light induced shape memory. A radically exchangeable covalent 2,2′-bis(2-phenylindan-l,3-dione) bond is used as a dynamic covalent crosslink together with permanent crosslink and an organometallic complex carbolong 556 as a photothermal agent in the polyurethane network. The dynamic covalent 2,2′-bis (2-phenylindan-l,3-dione) bond, which is reversibly responsive to both thermal and mechanical stimuli, endows the elastomer with high toughness, mechanochromism, thermochromism, photothermochromism and shape memory behavior which can be triggered by direct heating or near infrared light irradiation mediated by the carbolong 556. Mechanochromism and thermochromism/photothermochromism are practically useful to self-reporting of mechanical failure and thermal condition, respectively. The near infrared light responsiveness facilitates a precisely spatial and temporal control of the shape memory behavior. This strategy opens up new opportunities to smart polymers.

Published in Giant

ISSN: 2666-5425 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Science: Science (General)
Website: https://www.journals.elsevier.com/giant

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