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

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Abstract

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, 1H-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.

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Authors and Affiliations

  1. Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China

    Yue Li, Su-qing Li, Jing-bo Zhao  (赵京波), Zhi-yuan Zhang, Jun-ying Zhang & Wan-tai Yang

  2. State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

    Yue Li, Su-qing Li, Jing-bo Zhao  (赵京波), Zhi-yuan Zhang, Jun-ying Zhang & Wan-tai Yang

Authors
  1. Yue Li
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  2. Su-qing Li
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  3. Jing-bo Zhao  (赵京波)
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  4. Zhi-yuan Zhang
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  5. Jun-ying Zhang
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  6. Wan-tai Yang
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Corresponding author

Correspondence to Jing-bo Zhao  (赵京波).

Additional information

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

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Li, Y., Li, Sq., Zhao, Jb. et al. Synthesis and characterization of crystallizable aliphatic thermoplastic poly(ester urethane) elastomers through a non-isocyanate route. Chin J Polym Sci 34, 1220–1233 (2016). https://doi.org/10.1007/s10118-016-1839-8

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  • DOI: https://doi.org/10.1007/s10118-016-1839-8

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