文献类型：期刊文献

英文题名：Renewable High-Performance Polyurethane Bioplastics Derived from Lignin-Poly(ε-caprolactone)

作者：Zhang, Yan[1];Liao, Jianjun[1];Fang, Xiangchen[2];Bai, Fudong[2];Qiao, Kai[2];Wang, Lingmin[2]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]SINOPEC, Fushun Res Inst Petr & Petrochem, 31 Dandong Rd, Fushun 113001, Liaoning, Peoples R China

年份：2017

卷号：5

期号：5

起止页码：4276

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20171803631370);WOS:【SCI-EXPANDED(收录号:WOS:000400634900080)】；

基金：Financial support from the National Natural Science Foundation of China (21274039), Shanghai Pujiang Program (14PJD014), 111 Project (B14018), Specialized Research Fund for the Doctoral Program of Higher Education (20130074110007), and National Key Research and Development Program (2016YFC1100700) is gratefully acknowledged.

语种：英文

外文关键词：Lignin; Polyurethane; Poly(epsilon-caprolactone); Bioplastics; High performance

摘要：Here, we report novel lignin-poly(e-caprolactone)-based polyurethane bioplastics with high performance. The poly(e-caprolactone) (PCL) was incorporated as a biodegradable soft segment to the lignin by the bridge of hexamethylene diisocyanate (HDI) with long flexible aliphatic chains and high reactivity. The effects of -NCO/-OH molar ratio, content of lignin, and molecular weight of the PCL on the properties of the resultant polyurethane plastics were thoroughly evaluated. It is important that the polyurethane film still possessed high performance in the tensile strength, breaking elongation, and tear strength, which could reach 19.35 MPa, 188.36%, and 38.94 kN/m, respectively, when the content of lignin reached as high as 37.3%; moreover, it was very stable at 340.8 degrees C and presented excellent solvent-resistance. The results demonstrated that the modification of the lignin based on the urethane chemistry represents an effective strategy for developing lignin-based high-performance sustainable materials.