文献类型：期刊文献

英文题名：Structures and properties of polycarbonate modified polyether-polyurethanes prepared by transurethane polycondensation

作者：Liu, Bingling[1];Tian, Hengshui[1];Zhu, Lihu[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：132

期号：46

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20153501209176);WOS:【SCI-EXPANDED(收录号:WOS:000361039900027)】；

语种：英文

外文关键词：elastomers; mechanical properties; optical properties; polyurethanes; thermogravimetric analysis (TGA)

摘要：Thermoplastic polycarbonate modified polyether-polyurethane (PEPU) elastomers were prepared by transurethane polycondensation method using poly(oxytetramethylene) glycol of M-n=2000 and dimethyl-hexane-1,6-dicarbamate as the main raw materials, 1,4-butanediol as a chain extender and polycarbonate diol (PCDL) as an additive in the presence of dibutyltin oxide as a catalyst. The effect of the PCDL on the PEPUs' structure, intrinsic viscosity, molecular weight, mechanical, optical, and thermal properties, and water resistance were studied. The polycarbonate modified PEPUs showed better mechanical and thermal properties, but lower molecular weight and optical properties than the PEPUs. The PEPUs modified by PCDL1000 exhibited better performance, including mechanical, optical, and thermal properties, than those by PCDL2000. (c) 2015 Wiley Periodicals, Inc.