文献类型：期刊文献

英文题名：Preparation and Properties of Self-Healing Polyurethane Elastomer Derived from Tung-Oil-Based Polyphenol

作者：Li, Mei[1,2,3,4,5] Ding, Haiyang[1,2,3,4,5] Yang, Xiaohua[1,2,3,4,5] Xu, Lina[1,2,3,4,5] Xia, Jianling[1,2,3,4,5] Li, Shouhai[1,2,3,4,5]

第一作者：李梅;Li, Mei

通信作者：Li, SH[1];Li, SH[2];Li, SH[3];Li, SH[4]

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

年份：2020

卷号：5

期号：1

起止页码：529-536

外文期刊名：ACS OMEGA

收录：;Scopus(收录号：2-s2.0-85077656040);WOS:【SCI-EXPANDED(收录号:WOS:000507578300055)】；

基金：This work was supported by the National Natural Science Foundation of China (grant number: 31570563), the Natural Science Foundation of Jiangsu Province (grant number: BK20171131), and the Fundamental Research Funds of Chinese Academy of Forestry (grant number: CA-FYBB2017MB017), and the Innovation Project of Research Team Building of Institute of Chemical Industry of Forestry Products (Grant number: LXSXKQ3).

语种：英文

摘要：A tung-oil-based polyphenol (ATOM), con taining the phenolic hydroxyl group, was synthesized from tung oil and 4-maleimidophenol by the Diels-Alder addition reaction. Then self-healing thermosetting polyurethanes were prepared from ATOM and the polyurethane prepolymer. The chemical structure and cross-link network were confirmed by Fourier transform infrared spectroscopy (FTIR) and swelling tests. The products partially dissolved in trichlorobenzene when the temperature rose to 110 degrees C. Temperature-variable FTIR confirmed that the phenolic urethane starts to partially dissolve at 100 degrees C, which can be explained by the experimental phenomenon in swelling tests. Tensile property analysis showed that the broken and healed thermosets maintained about 46-64% of their original tensile strengths and 81-88% of their original elongations at break, respectively.