NIPPON GOMU KYOKAISHI
Print ISSN : 0029-022X
Advanced Course on Rubber Science and Technology
Science and Technology of Polyurethanes was the Polyurethane Understood in How Far?
III Progress of raw materials for polyurethanes
Mutsuhisa FURUKAWA
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2018 Volume 91 Issue 11 Pages 406-414

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Abstract

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.

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© 2018 The Society of Rubber Industry, Japan
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