文献类型：期刊文献

英文题名：Recyclable, photothermal dual responsive shape memory epoxy vitrimers containing dynamic oxime-carbamate bonds, dynamic ester bonds and hydrogen bonds based on vegetable oil

作者：Xie, Xiaoqi[1,2,3] Li, Shouhai[1,2,3] Li, Mei[1,2,3] Ding, Haiyang[1,2,3] Lin, Mingtao[1,2,3] Xu, Lina[1,2,3] Yao, Na[1,2,3] Feng, Qingyuan[1,2,3] Yang, Xiaohua[1,2,3] Feng, Xiao[1,2,3] Zhang, Yan[1,2,3] Xing, Yi[1,2,3]

第一作者：Xie, Xiaoqi

机构：[1] National Key Laboratory for Development and Utilization of Forest Food Resources, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, 210042, China; [2] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Lab. of Biomass Energy and Material, Jiangsu Province, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing, 210042, China; [3] Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing, 210042, China

年份：2025

卷号：521

外文期刊名：Chemical Engineering Journal

收录：EI(收录号：20253118913126);Scopus(收录号：2-s2.0-105012136881)

语种：英文

外文关键词：Adhesives - Computer software reusability - Crosslinking - Dynamics - Hydrogen bonds - Nuclear fuel reprocessing - Quinone - Shape memory effect

摘要：The utilization of natural and renewable vegetable oil resources for development of multi-functional polymer materials aligns with the expanding practical application requirements and adheres to sustainable development strategies. Here, 3 different novel vegetable oil-based active prepolymers containing carboxyl groups, quinone oxime, isocyanate (NCO), and oxime-carbamate structures were synthesized using oleic acid as the raw material. Then a series of vegetable oil-based epoxy vitrimers were constructed via crosslinking polymerization with epoxy resin. The molecular structure, mechanical properties, and thermal characteristics of the fabricated vitrimers were systematically investigated, and their reprocessability and photothermal dual responsive shape memory behavior were also analyzed in detail. The resulting polymers exhibit superior controllable mechanical properties, and display outstanding reprocessability without the addition of a catalyst. The dynamic three-dimensional cross-linking networks formed by dynamic oxime-carbamate, dynamic ester bonds and hydrogen bonds endow the polymerization systems with exceptional reprocessability. The incorporation of quinone oxime groups within the polymerization systems endows the polymers with excellent photothermal dual-response shape memory performance. The superior adhesion and repair capabilities make the polymers suitable for use as reusable adhesives. The polymers developed here hold significant potential for applications in medical, electronic, and other fields. ? 2025