2009•China PlasticsRequires access

Synthesis and Characterization of Non-isocyanate Polyurethane

Xiaomei Wang, Xun Hong-di, Jiaxi Wang, Liucheng Zhang

Abstract

A preparation method of isocyanate-free polyurethane was proposed using dimethylhexane-1,6-dicarbamate(HDU)as a curing agent.The structure of the obtained polyurethane was confirmed by means of IR,NMR,and GPC.When the molar ratio of HDU to polyether glycol 3000 was 1∶1,the reaction temperature was 180 ℃,a weight-average molecular weight of 8.5×104 was obtained after 1 hour.

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Key concepts: Polyurethane, Isocyanate, Materials science, Molar ratio, Curing (chemistry), Characterization (materials science), Polymer chemistry, Chemical engineering