文献类型：期刊文献

英文题名：Bio-Based Reprocessable and Degradable Epoxy Resins via Inverse Vulcanization

作者：Jin, Yu[1] Hu, Chengcheng[1] Wang, Zhengxiang[1] Xia, Zhiqiang[1] Li, Rui[1] Shi, Shuo[1] Xu, Shichao[2] Yuan, Liang[1]

第一作者：Jin, Yu

通信作者：Yuan, L[1];Xu, SC[2]

机构：[1]Anhui Agr Univ, Biomass Mol Engn Ctr, Sch Forestry & Landscape Architecture, Hefei 230036, Anhui, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2023

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20233214501373);Scopus(收录号：2-s2.0-85166772287);WOS:【SCI-EXPANDED(收录号:WOS:001031754400001)】；

基金：The funding support from Anhui Agricultural University and the Natural Science Foundation of Anhui Province (no. 2208085MC69) are gratefully acknowledged.

语种：英文

外文关键词：bio-based polymers; eugenol; sulfur; inverse vulcanization; degradable epoxy resins

摘要：Designingsustainable epoxy resins with intrinsic recyclabilityand degradability has become vital in polymer science. Here, we reportsulfur chain-modified epoxy networks (S x E y U z ) throughcatalyst-free tri-component polymerization of elemental sulfur withglycidyl ethers of bio-sourced eugenol (EGE) and 10-undecenol (UGE)via inverse vulcanization. The biogenic allyl protons on EGE weredisclosed to be critical for the dual-mechanism cross-linking system.Intermediates from the tri-component polymerization were found tobe flowable, storable, and post-curable. Reprocessable epoxy polymerswith tensile strength up to 13.0 MPa were obtained after curing, surpassingmost reported bio-based polymers via inverse vulcanization. Carbonfiber (CF) composites fabricated in the S x E y U z matrixcan be readily digested in a methanol solution of Na(2)Sand neat hexylamine to recycle CF. Epoxy-functionalizedeugenol was cured with sulfur throughdual mechanisms promoted by its inherent allylic protons.