文献类型：期刊文献

英文题名：Self-healing silicon-containing eugenol-based epoxy resin based on disulfide bond exchange: Synthesis and structure-property relationships

作者：Li, Wenbin[1,2,3,4,5] Xiao, Laihui[1,2,3,4] Wang, Yigang[1,2,3,4] Chen, Jie[1,2,3,4] Nie, Xiaoan[1,2,3,4]

第一作者：Li, Wenbin

通信作者：Chen, J[1];Nie, XA[2]|[a000589b5308f5ef7bcf9]陈洁;[a0005997aa787f4d4afa0]聂小安;

机构：[1]Key Lab Biomass Energy & Mat, Nanjing, Jiangsu, Peoples R China;[2]Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing, Jiangsu, Peoples R China;[3]Natl Forestry & Grassland Adm, Key Lab Chem Engn Forest Prod, Nanjing, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, 16 Suojin Wucun, Nanjing 210042, Jiangsu, Peoples R China;[5]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing, Peoples R China

年份：2021

卷号：229

外文期刊名：POLYMER

收录：;EI(收录号：20212910650143);Scopus(收录号：2-s2.0-85110164137);WOS:【SCI-EXPANDED(收录号:WOS:000687338600008)】；

基金：The authors are grateful for the support and funding from the Innovation and Promotion Project for Forestry Science and Technology of Jiangsu Province (LYKJ [2019] 45), and the Jiangsu Key Lab of Biomass-based Fuels and Materials (JSBEM-S-202002).

语种：英文

外文关键词：Bio-based epoxy resin; Organo-silicone; Dynamic covalent bonds

摘要：The research of biobased multifunctional self-repairing and cross-linking epoxy resins with excellent mechanical properties is meaningful and should be further fabricated and developed. Herein, a biobased double functional epoxy monomer modified with organosilicon (EETS) was derived from eugenol and 1,1,3,3-tetramethyldisiloxane, and cured by 4-aminophenyl disulfide (APDS) to form the disulfide bond dynamic epoxy EETS/APDS resins. The combination properties of EETS/APDS resin were studied systemically. Results demonstrated that the EETS/APDS had lower glass transition temperature (53.03 degrees C) and tensile strength (38.8 MPa), and higher elongation at break (22.1%), compared with the thermoset of diglycidyl ether of bisphenol A (DGEBA/APDS). In addition, the relaxation time of EETS/APDS resin was 28 s at 200 degrees C. At the same time, self-repairing, shape memory, and reprocessing ability of EETS/APDS resin was exhibited by physical fracture and moderate-high temperature repair due to the rapid exchange of disulfide bonds. Furthermore, the complete degradation of the BDSER resins could be achieved. These excellent dynamic properties and bio-based monomers provide a feasible way to meet the requirements of sustainable development.