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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...
A Nylon-6 oligomer (PrePA) was synthesized by ring-opening polymerization from ε-caprolactam with 2-amino-ethanol under the catalysis of H 3 PO 3 . Polyesteramide prepolymers (PrePEAs) having amide content from 10 to 60 mol% were prepared through melt polycondensation from adipic acid, 1,4-butanediol and the PrePA. Chain extension of PrePEAs was carried out at 200 °C using 2,2′-(1,4-phenylene)-bis(2-oxazoline)...
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