Sulfur-rich polymers with heating/UV light-responsive shape memory and temperature-modulated self-healing

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Yang, Zhao, Yan, Peiyao, Li, Xiaohu, Miao, Congcong, Cai, Shanshan Diana, Ji, Weigang, Song, Mengyuan, Dodd, Liam J, Wu, Xiaofeng ORCID: 0000-0001-5549-8836, Hasell, Tom ORCID: 0000-0003-4736-0604 et al (show 1 more authors) and Song, Pengfei (2023) Sulfur-rich polymers with heating/UV light-responsive shape memory and temperature-modulated self-healing POLYMER CHEMISTRY, 14 (32). pp. 3686-3694. ISSN 1759-9954, 1759-9962

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Abstract

Inverse vulcanized polymers from elemental sulfur with blended mono-/di-olefins have the advantages of simple production and high atom economy, allowing them to adhere to the principles of green and sustainable chemistry. The ternary co-polymer presented herein has an adjustable glass and topological transition temperature due to the S-S dynamic network and the different feed ratios of mono-/di-olefins in the copolymerization process, together with a shape memory and self-healing capacity at different temperatures, with the lowest at 30 °C. A series of interesting properties and performances of the obtained polymers in terms of elasticity, plasticity, complex heating/ultraviolet light stimulated shape memory properties, and temperature-modulated self-healing ability have been revealed, responding to the fracture and re-bonding of the S-S bond to reconstruct the cross-linked network. The strategy could be used in the manufacture of complex three-dimensional (3D) structures for biological applications, and also has potential in shape storage devices and self-healing materials.

Item Type:	Article
Uncontrolled Keywords:	40 Engineering, 3403 Macromolecular and Materials Chemistry, 4016 Materials Engineering, 34 Chemical Sciences
Divisions:	Faculty of Science & Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	11 Sep 2023 07:55
Last Modified:	24 Jan 2026 04:31
DOI:	10.1039/d3py00724c
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172657
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