文献类型：期刊文献

英文题名：Closed-Loop Recyclable Poly(ester-disulfide)s for Potential Alternatives to Engineering Plastic

作者：Chen, Meng[1,2];Yang, Rulin[1,2];Wu, Huiping[1,2];Wang, Qian[1,2];Shi, Chenyu[1,2];Zhou, Shang-Wu[1,2];Yang, Ding[1,2];Liu, Fang-Yu[1,2];Tian, He[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Sch Chem & Mol Engn, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem,Joint I, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2024

卷号：63

期号：38

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20243316879685);WOS:【SCI-EXPANDED(收录号:WOS:001290349200001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant nos. 22105072, 22025503, 22220102004), Shanghai Municipal Science and Technology Major Project (grant no. 2018SHZDZX03), the Innovation Program of Shanghai Municipal Education Commission (2023ZKZD40), the Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (grant no. B16017), Science and Technology Commission of Shanghai Municipality (grant no. 21JC1401700), and the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study (grant no. SN-ZJU-SIAS-006). The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for help with the material characterisation. I would like to sincerely thank Dr Qi Zhang and Dr Chengxi Zhao for the helpful discussions related to this work. I deeply appreciate their generous help in improving the manuscript.

语种：英文

外文关键词：CANs; biobased; poly(ester-disulfide)s; closed-loop recycling; engineering plastics

摘要：Facile fabrication, low material complexity and closed-loop recycling are essential for polymer plastics to alter their linear product economy towards a cradle-to-cradle one. Covalent adaptable networks (CANs) are one way to achieve that, which intrinsically exhibit decent mechanical properties like the thermosets but could also be easily recycled like the thermoplastics. In this work, we introduce rigid ester structural motifs into dynamic poly(disulfide)s to form a series of dual polymer networks. Owning to the coherence of soft/rigid segments and the reversible sacrificial crosslinking, they exhibit tailorable mechanical properties and good resistance towards different chemicals. Their closed-loop recycling is achieved via mild solvolysis, maintaining materials' mechanical integrities. It offers a solution as a sustainable replacement for engineering plastics which are massively under production but hard to be recycled. It is a representative case study of tough, chemical resistant and closed-loop recyclable dynamic poly(ester-disulfide)s of which their highly crosslinking nature was contributed by a synergetic effect of covalent ester-bond linkages and non-covalent hydrogen bonding, metal-ligand coordinations, subsequently endowing the fabricated optical-transparent materials with excellent mechanical properties, decent chemical resistance and facile closed-loop recycling capabilities, comparable with engineering polymers. image