采用硫代法制备高性能可回收聚硫酯

IF 4.1 2区化学 Q2 POLYMER SCIENCE Polymer Chemistry Pub Date : 2025-01-16 DOI:10.1039/d4py01425a

Si-Qi Wang, Long-Hai Liu, Kun Li, Wei Xiong, Hua-Zhong Fan, Qing Cao, Zhongzheng Cai, Jian-Bo Zhu

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摘要

开发新的化学可回收聚合物是循环塑料经济的高度要求。本文采用硫代法提高聚己内酯（PCL）的化学可回收性和材料性能。该产物具有高的热稳定性（Td = 330℃）、高的空气稳定性、高的结晶度、优异的机械性能和输运性能（σB = ~20 MPa, σB = ~600%, PO2 = 0.38 Barrer），可与工业低密度聚乙烯相比较。令人印象深刻的是，P（tCL）可以以优异的收率和纯度实现化学再循环到其单体，从而建立其循环生命周期

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Implementing Sulfur-Substitution Approach Toward a High-Performance Recyclable Polythioester

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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来源期刊

Polymer Chemistry POLYMER SCIENCE-

CiteScore

8.60

自引率

8.70%

发文量

535

审稿时长

1.7 months

期刊介绍： 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.