著者

古川 睦久

出版者

一般社団法人 日本ゴム協会

雑誌

日本ゴム協会誌 (ISSN:0029022X)

巻号頁・発行日

vol.91, no.11, pp.406-414, 2018 (Released:2019-04-23)

参考文献数

37

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Polyurethanes are synthesized by reaction of polymer glycols, diisocyanates and active hydrogen compounds as chain extenders (curing agents). Chain extenders are low molecular glycol and diamine. Elucidation of the reaction mechanism of isocyanate with active hydrogen compound is indispensable to expand the dream to create new polyurethane. Recent advances in computer chemistry has greatly contributed to understand the reaction mechanism of active hydrogen-containing compound and isocyanate. This article, at first, reviewed the progress of the reaction mechanism of isocyanate, and then described the features of the new diisocyanates, polyol, curing agent, and catalyst.