Details

Autor(en) / Beteiligte

• Li, Yue
• Li, Su-qing
• Zhao, Jing-bo
• Zhang, Zhi-yuan
• Zhang, Jun-ying
• Yang, Wan-tai

Titel

Synthesis and characterization of crystallizable aliphatic thermoplastic poly(ester urethane) elastomers through a non-isocyanate route

Ist Teil von

• Chinese journal of polymer science, 2016-10, Vol.34 (10), p.1220-1233

Ort / Verlag

Beijing: Chinese Chemical Society and Institute of Chemistry, CAS

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A simple non-isocyanate route is developed for synthesizing crystallizable aliphatic thermoplastic poly(ester urethane) elastomers (TPEURs) with good thermal and mechanical properties. Three prepolymers of 1,6-bis(hydroxyethyloxycarbonylamino) hexane (BHCH), i . e . PrePBHCHs, were prepared through the self-transurethane polycondensation of BHCH. A poly(butylene adipate) prepolymer (PrePBA) with terminal HO― groups was prepared and used as a polyester glycol. A series of TPEURs were prepared by the co-polycondensation of the PrePBHCHs with PrePBA at 170 °C under a reduced pressure of 399 Pa. The TPEURs were characterized by gel permeation chromatography, FTIR, 1 H-NMR, differential scanning calorimetry, thermogravimetric analysis, wide-angle X-ray diffraction, atomic force microscopy, and tensile test. The TPEURs exhibited M n up to 23300 g/mol, M w up to 51100 g/mol, T g ranging from −33.8 °C to −3.1 °C, T m from 94.3 °C to 111.9 °C, initial decomposition temperature over 274.7 °C, tensile strength up to 18.8 MPa with a strain at break of 450.0%, and resilience up to 77.5%. TPU elastomers with good crystallization and mechanical properties were obtained through a non-isocyanate route.