{"title":"Implementing Sulfur-Substitution Approach Toward a High-Performance Recyclable Polythioester","authors":"Si-Qi Wang, Long-Hai Liu, Kun Li, Wei Xiong, Hua-Zhong Fan, Qing Cao, Zhongzheng Cai, Jian-Bo Zhu","doi":"10.1039/d4py01425a","DOIUrl":null,"url":null,"abstract":"Developing new chemically recyclable polymers is highly demanded for a circular plastic economy. Herein, we implemented a sulfur-substitution approach to improve the chemical recyclability and material performance of polycaprolactone (PCL). This thiocaprolactone (tCL) displayed excellent reactivity towards ring-opening polymerization, affording P(tCL) products with high thermal stability (Td = 330 °C), high air stability, high crystallinity, and outstanding mechanical and transport property (σB = ~20 MPa, ɛB = ~600%, PO2 = 0.38 Barrer) comparable to commercial low-density polyethylene. Impressively, chemical recycling of P(tCL) to its monomer could be accomplished with excellent yield and purity, thus establishing its circular life cycle","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"2 1","pages":""},"PeriodicalIF":4.1000,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4py01425a","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Developing new chemically recyclable polymers is highly demanded for a circular plastic economy. Herein, we implemented a sulfur-substitution approach to improve the chemical recyclability and material performance of polycaprolactone (PCL). This thiocaprolactone (tCL) displayed excellent reactivity towards ring-opening polymerization, affording P(tCL) products with high thermal stability (Td = 330 °C), high air stability, high crystallinity, and outstanding mechanical and transport property (σB = ~20 MPa, ɛB = ~600%, PO2 = 0.38 Barrer) comparable to commercial low-density polyethylene. Impressively, chemical recycling of P(tCL) to its monomer could be accomplished with excellent yield and purity, thus establishing its circular life cycle
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Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
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