首页|Catalyst-free and Reprocessable Aromatic Polydithiourethanes

Catalyst-free and Reprocessable Aromatic Polydithiourethanes

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The incorporation of dynamic covalent bonds into thermosets facilitates the reprocessing of polymer networks,thereby meeting the sustainable requirements for polymer recycling.However,the mechanical properties of many materials often decline significantly upon repro-cessing due to side reactions caused by harsh processing conditions.In this work,we find that the aromatic dithiocarbamate bond can undergo dissociation under mild conditions without the need for a catalyst,enabling the efficient reprocessing of the corresponding polydithiourethane.As a consequence,the mechanical properties of the polydithiourethane can be largely preserved after reprocessing.The discovery of this dyna-mic chemistry is anticipated to broaden the potential for material design in dynamic covalent polymer networks.

ReprocessingPolydithiourethaneDynamic covalent bond

Bo Yang、Hai-Jun Feng、Tian-Tian Ni、Xiao-Rui Zhou、Tao Xie、Ning Zheng

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State Key Laboratory of Chemical Engineering,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310058,China

State Key Laboratory of Chemical Engineering,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou310058,China

Department of Colorectal Surgery and Oncology,Key Laboratory of Cancer Prevention and Intervention,Ministry of Education,The Second Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310009,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of China

2227516252322307

2024

高分子科学(英文版)
中国化学会 中国科学院化学研究所

高分子科学(英文版)

CSTPCD
影响因子:0.721
ISSN:0256-7679
年,卷(期):2024.42(10)