Ring-Opening Copolymerization of Biorenewable δ-Caprolactone with trans-Hexahydro-(4,5)-benzofuranone toward Closed-Loop Recyclable Copolyesters and Their Application as Pressure-Sensitive Adhesives

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外文摘要：Copolymerization as an efficient strategy can provide an opportunity to create new closed-loop recyclable polymeric materials with tailored properties that are generally inaccessible to the individual homopolymers.In this contribution,the bulk ring-opening copol-ymerization of bio-renewable δ-caprolactone and trans-hexahydro-(4,5)-benzofuranone was achieved to produce closed-loop recy-clable copolyesters by using an organobase/urea binary catalyst at room temperature.The obtained copolyesters exhibited composi-tion-dependent thermal properties.Remarkably,the obtained copolyesters were able to depolymerize back to recover the corre-sponding monomers under mild conditions.The copolyesters with suitable compositions can be directly used as pressure-sensitive adhesives(PSAs)that possessed comparable peel strength with the commercially available PSA scotch tapes.When the copolyesters were mixed with plasticizers,the as-prepared PSAs exhibited desirable adhesive failure and can be used as removable post-it note.

外文关键词：

Recyclable polymersRing-opening polymerizationCopolymerizationPressure-sensitive adhesivesAliphatic polyesters

作者：

Haining Niu、Liying Wang、Zihan Zhang、Yalei Liu、Yong Shen、Zhibo Li

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作者单位：

State Key Laboratory Base of Eco-Chemical Engineering

College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao,Shandong 266042,China

Key Laboratory of Biobased Polymer Materials,Shandong Provincial Education Department

Qingdao University of Science and Technology,Qingdao,Shandong 266042,China

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出版年：

2024

DOI：

10.1002/cjoc.202400244

中国化学(英文版)

中国化学会上海有机化学研究所

中国化学(英文版)

CSTPCD

影响因子：0.848

ISSN：1001-604X

年,卷(期)：2024.42(17)