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Structures and properties of polycarbonate modified polyether‐polyurethanes prepared by transurethane polycondensation
Author(s) -
Liu Bingling,
Tian Hengshui,
Zhu Lihu
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.42804
Subject(s) - polycarbonate , condensation polymer , materials science , diol , polymer chemistry , polyurethane , viscosity , polymer , composite material , chemical engineering , engineering
Thermoplastic polycarbonate modified polyether‐polyurethane (PEPU) elastomers were prepared by transurethane polycondensation method using poly(oxytetramethylene) glycol of M n = 2000 and dimethyl‐hexane‐1,6‐dicarbamate as the main raw materials, 1,4‐butanediol as a chain extender and polycarbonate diol (PCDL) as an additive in the presence of dibutyltin oxide as a catalyst. The effect of the PCDL on the PEPUs' structure, intrinsic viscosity, molecular weight, mechanical, optical, and thermal properties, and water resistance were studied. The polycarbonate modified PEPUs showed better mechanical and thermal properties, but lower molecular weight and optical properties than the PEPUs. The PEPUs modified by PCDL1000 exhibited better performance, including mechanical, optical, and thermal properties, than those by PCDL2000. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42804.