Citation: Yong Deng, Su-qing Li, Jing-bo Zhao, Zhi-yuan Zhang, Jun-ying Zhang, Wan-tai Yang. Aliphatic Thermoplastic Poly(ether urethane)s Having Long PEG Sequences Synthesized through a Non-isocyanate Route[J]. Chinese Journal of Polymer Science, ;2015, 33(6): 880-889. doi: 10.1007/s10118-015-1638-7 shu

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

Received Date: 9 October 2014
Revised Date: 29 December 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21244006 and 50873013).

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%.
- Non-isocyanate route,
- Poly(ether urethane)s,
- Transurethane polycondensation,
- Diurethanediol,
- Thermoplastic
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沈阳化工大学材料科学与工程学院沈阳 110142