Suqing Li, Jing‐bo Zhao, Zhiyuan Zhang
Jan 28, 2015
Citations
1
Influential Citations
36
Citations
Journal
Polymer
Abstract
Abstract A simple non-isocyanate route synthesizing aliphatic thermoplastic polyurethane elastomers with good mechanical properties is described. A biscarbamate, i.e. di(hydroxyethyl)isophorone biscarbamate (DIBC), was prepared from direct reaction of isophorone diamine with ethylene carbonate without any catalyst. Self melt transurethane polycondensation of DIBC and co-polycondensation with different polyethylene glycols (PEGs) were conducted. Homopolymer of DIBC (PDIBC) and poly(ether urethane)s (PEUs) with high molecular weight were prepared. They were characterized by GPC, FT-IR, 1 H NMR, 13 C NMR, 2D 13 C– 1 H HSQC NMR, DEPT-135 13 C NMR, DSC, TGA and tensile test. PEUs exhibited an Mn up to 31,100, an Mw up to 126,000, Tg between −38.3 °C and 64.1 °C, initial decomposition temperature at over 259.1 °C, tensile strength up to 24.41 MPa with elongation at break of 454.17%, and resilience up to 97.50%.