文献类型：期刊文献

英文题名：Self-healing, high-performance, and high-biobased-content UV-curable coatings derived from rubber seed oil and itaconic acid

作者：Huang, Jia[1,2,3,4,5] Zhang, Jinshuai[1,2,3,4,5] Zhu, Guoqiang[1,2,3,4,5] Yu, Xixi[1,2,3,4,5,6] Hu, Yun[1] Shang, Qianqian[2,3,4,5] Chen, Jianqiang[1,2,3,4,5] Hu, Lihong[7] Zhou, Yonghong[1,2,3,4,5] Liu, Chengguo[1,2,3,4,5]

第一作者：Huang, Jia

通信作者：Liu, CG[1]

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, Beijing, Peoples R China;[4]Natl Engn Lab Biomass Chem Utilizat, Nanjing, Peoples R China;[5]Chinese Acad Forestry, Inst Chem Ind Forest Prod, 16 Suojin Wucun, Nanjing 210042, Peoples R China;[6]Nanjing Forestry Univ, Coll Sci, 159 Longpan Rd, Nanjing 210037, Peoples R China;[7]Nanjing Forestry Univ, Coll Biol & Environm, 159 Longpan Rd, Nanjing 210037, Peoples R China

年份：2021

卷号：159

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;EI(收录号：20212610556603);Scopus(收录号：2-s2.0-85108442469);WOS:【SCI-EXPANDED(收录号:WOS:000696947700010)】；

基金：We greatly thank the financial support from the National Natural Science Foundation of China (31822009 and 31770615) and the Fundamental Research Funds of CAF (CAFYBB2020QA005) .

语种：英文

外文关键词：UV-curable coatings; Self-healing; Dynamic covalent bond; Rubber seed oil; Itaconic acid

摘要：Development of self-healing UV-curable coatings from biorenewable resources is of great significance for sustainable development and environmental protection. In this work, a biobased UV-curable oligomer was firstly synthesized by ring-opening reaction of epoxidized rubber seed oil with glycidyl methacrylate-modified itaconic acid precursor. Chemical structure of the obtained oligomer was then characterized by FT-IR, 1H NMR, and gel permeation chromatography. Subsequently, a series of UV-curable coatings were prepared by cophotopolymerization of the oligomer with the hydroxyethyl methacrylate diluent. UV-curing behaviors, biobased contents, and ultimate properties such as thermal, mechanical, and coating properties were studied. Furthermore, dynamic transesterification reactions were activated at elevated temperatures in the presence of a Zinc catalyst, thus self-healing, shape memory, malleable, and recyclable properties were further investigated. Notably, the obtained UV-curable coatings demonstrated good self-healing properties (86-100% at 200 degrees C for 30 min), high biobased contents (45.4-72.3%), and high performance (tensile strength and glass transition temperature up to 22.4 MPa and 119.2 degrees C, respectively).