Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Jing-bo Zhao (赵京波), E-mail: zhaojb@mail.buct.edu.cn
收稿:2016-03-18,
修回:2016-6-7,
录用:2016-6-9,
纸质出版:2016-10-05
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Li Yue, Li Su-qing, Zhao Jing-bo, 等. Synthesis and Characterization of Crystallizable Aliphatic Thermoplastic Poly(ester urethane) Elastomers through a Non-isocyanate Route[J]. Chinese Journal of Polymer Science, 2016,34(10):1220-1233.
Li Yue, Li Su-qing, Zhao Jing-bo, et al. Synthesis and Characterization of Crystallizable Aliphatic Thermoplastic Poly(ester urethane) Elastomers through a Non-isocyanate Route[J]. Chinese Journal of Polymer Science, 2016, 34(10): 1220-1233.
Li Yue, Li Su-qing, Zhao Jing-bo, 等. Synthesis and Characterization of Crystallizable Aliphatic Thermoplastic Poly(ester urethane) Elastomers through a Non-isocyanate Route[J]. Chinese Journal of Polymer Science, 2016,34(10):1220-1233. DOI: 10.1007/s10118-016-1839-8.
Li Yue, Li Su-qing, Zhao Jing-bo, et al. Synthesis and Characterization of Crystallizable Aliphatic Thermoplastic Poly(ester urethane) Elastomers through a Non-isocyanate Route[J]. Chinese Journal of Polymer Science, 2016, 34(10): 1220-1233. DOI: 10.1007/s10118-016-1839-8.
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 ℃ 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 ℃ to -3.1 ℃
T
m
from 94.3 ℃ to 111.9 ℃
initial decomposition temperature over 274.7 ℃
tensile strength up to18.8 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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