Preparation and Properties of Self-Healing Polyurethane Elastomer Derived from Tung-Oil-Based Polyphenol

被引：40
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 ]
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
来源：
ACS OMEGA | 2020年 / 5卷 / 01期
基金：
中国国家自然科学基金;
关键词：
ELEOSTEARIC ACIDS; COMPOUND; POLYMERS; BONDS;
D O I：
10.1021/acsomega.9b03082
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
引用
收藏
页码：529 / 536
页数：8
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