Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction

Developing self-healing silicone elastomers are highly significant because of their promising applications. Herein, we present novel self-healing disulfide-linked silicone elastomers (SEs) based on thiol-terminated sulfur-containing heterochain polysiloxanes (P-SHs) and three thiol-containing crossl...

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Autores principales:	Yanhua Huang, Jianpan Yan, Dengxu Wang, Shengyu Feng, Chuanjian Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	silicone elastomers self-healing thiol oxidation coupling reaction disulfide bond adhesives Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/23b064e561d847a1b8d53b728dcbe633
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spelling	oai:doaj.org-article:23b064e561d847a1b8d53b728dcbe6332021-11-11T18:45:29ZConstruction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction10.3390/polym132137292073-4360https://doaj.org/article/23b064e561d847a1b8d53b728dcbe6332021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3729https://doaj.org/toc/2073-4360Developing self-healing silicone elastomers are highly significant because of their promising applications. Herein, we present novel self-healing disulfide-linked silicone elastomers (SEs) based on thiol-terminated sulfur-containing heterochain polysiloxanes (P-SHs) and three thiol-containing crosslinkers, including pentaerythritol tetrakis(β-mercaptopropionate) (PETMP), octa(3-mercaptopropyl)silsesquioxane (POSS-SH), and poly[(mercaptopropyl)methylsiloxane] (PMMS), via the thiol oxidation coupling reactions. The construction of these SEs can rapidly proceed at room temperature. The effects of crosslinker species and amounts on the formability and mechanical properties were investigated. The silicone elastomers can be self-healed by heating at 150 °C for 2 h or under UV radiation for 30 min after cutting them into pieces and the self-healing efficiency is >70%. Moreover, they can be utilized as adhesives for bonding glass sheets, which can hold a 200 g weight. The bonding is reversible and can repeatedly proceed many times, indicating that these materials can promisingly be applied as reversible adhesives. These results indicate that a thiol oxidation coupling reaction is a simple and effective strategy for the construction of self-healing disulfide-linked elastomers. Under this strategy, more disulfide-linked organic elastomers with self-healing properties can be designed and constructed and their applications can be further explored.Yanhua HuangJianpan YanDengxu WangShengyu FengChuanjian ZhouMDPI AGarticlesilicone elastomersself-healingthiol oxidation coupling reactiondisulfide bondadhesivesOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3729, p 3729 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	silicone elastomers self-healing thiol oxidation coupling reaction disulfide bond adhesives Organic chemistry QD241-441
spellingShingle	silicone elastomers self-healing thiol oxidation coupling reaction disulfide bond adhesives Organic chemistry QD241-441 Yanhua Huang Jianpan Yan Dengxu Wang Shengyu Feng Chuanjian Zhou Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
description	Developing self-healing silicone elastomers are highly significant because of their promising applications. Herein, we present novel self-healing disulfide-linked silicone elastomers (SEs) based on thiol-terminated sulfur-containing heterochain polysiloxanes (P-SHs) and three thiol-containing crosslinkers, including pentaerythritol tetrakis(β-mercaptopropionate) (PETMP), octa(3-mercaptopropyl)silsesquioxane (POSS-SH), and poly[(mercaptopropyl)methylsiloxane] (PMMS), via the thiol oxidation coupling reactions. The construction of these SEs can rapidly proceed at room temperature. The effects of crosslinker species and amounts on the formability and mechanical properties were investigated. The silicone elastomers can be self-healed by heating at 150 °C for 2 h or under UV radiation for 30 min after cutting them into pieces and the self-healing efficiency is >70%. Moreover, they can be utilized as adhesives for bonding glass sheets, which can hold a 200 g weight. The bonding is reversible and can repeatedly proceed many times, indicating that these materials can promisingly be applied as reversible adhesives. These results indicate that a thiol oxidation coupling reaction is a simple and effective strategy for the construction of self-healing disulfide-linked elastomers. Under this strategy, more disulfide-linked organic elastomers with self-healing properties can be designed and constructed and their applications can be further explored.
format	article
author	Yanhua Huang Jianpan Yan Dengxu Wang Shengyu Feng Chuanjian Zhou
author_facet	Yanhua Huang Jianpan Yan Dengxu Wang Shengyu Feng Chuanjian Zhou
author_sort	Yanhua Huang
title	Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
title_short	Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
title_full	Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
title_fullStr	Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
title_full_unstemmed	Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction
title_sort	construction of self-healing disulfide-linked silicone elastomers by thiol oxidation coupling reaction
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/23b064e561d847a1b8d53b728dcbe633
work_keys_str_mv	AT yanhuahuang constructionofselfhealingdisulfidelinkedsiliconeelastomersbythioloxidationcouplingreaction AT jianpanyan constructionofselfhealingdisulfidelinkedsiliconeelastomersbythioloxidationcouplingreaction AT dengxuwang constructionofselfhealingdisulfidelinkedsiliconeelastomersbythioloxidationcouplingreaction AT shengyufeng constructionofselfhealingdisulfidelinkedsiliconeelastomersbythioloxidationcouplingreaction AT chuanjianzhou constructionofselfhealingdisulfidelinkedsiliconeelastomersbythioloxidationcouplingreaction
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Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction

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