Aliphatic Thermoplastic Poly(ether urethane)s Having Long PEG Sequences Synthesized through a Non-isocyanate Route  

作　　者：Yong Deng Su-qing Li 赵京波 Zhi-yuan Zhang Jun-ying Zhang Wan-tai Yang 

机构地区：[1]Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology),Ministry of Education [2]State Key Laboratory of Chemical Resource Engineering,College of Materials Science and Engineering,Beijing University of Chemical Technology

出　　处：《Chinese Journal of Polymer Science》2015年第6期880-889,共10页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21244006 and 50873013)

摘　　要：A non-isocyanate route for synthesizing thermoplastic polyurethanes with excellent thermal and mechanical properties was described. Melt transurethane polycondensation of 1,6-bis（hydroxyethyloxy carbonyl amino）hexane with four poly（ethylene glycol）s （PEGs）, i.e. PEG400, PEG600, PEG1000, or PEG1500, was conducted at different molar ratios. A series of thermoplastic poly（ether urethane）s （TPEUs） with long PEG sequences were prepared. The TPEUs were characterized via gel permeation chromatography, FTIR, 1H-NMR, differential scanning calorimetry, thermogravimetric analysis, wide-angle X-ray scattering, and tensile tests. The TPEUs exhibit Tg between 12.4 ℃ and -40.4 ℃, Tm of up to 149.8 ℃, and initial decomposition temperature over 239.4 ℃. The tensile strength of the TPEUs reaches 38.39 MPa with a strain at break of 852.92%.A non-isocyanate route for synthesizing thermoplastic polyurethanes with excellent thermal and mechanical properties was described. Melt transurethane polycondensation of 1,6-bis（hydroxyethyloxy carbonyl amino）hexane with four poly（ethylene glycol）s （PEGs）, i.e. PEG400, PEG600, PEG1000, or PEG1500, was conducted at different molar ratios. A series of thermoplastic poly（ether urethane）s （TPEUs） with long PEG sequences were prepared. The TPEUs were characterized via gel permeation chromatography, FTIR, 1H-NMR, differential scanning calorimetry, thermogravimetric analysis, wide-angle X-ray scattering, and tensile tests. The TPEUs exhibit Tg between 12.4 ℃ and -40.4 ℃, Tm of up to 149.8 ℃, and initial decomposition temperature over 239.4 ℃. The tensile strength of the TPEUs reaches 38.39 MPa with a strain at break of 852.92%.

关 键 词：Non-isoeyanate route Poly（ether urethane）s Transuretbane polycondensation Diurethanediol Thermoplastic. 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ463.4