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Synthesis and performance of transparent casting polyurethane resin

✍ Scribed by Xue Feng; Shi Yusheng; Huang Shuhuai

Book ID
105630083
Publisher
Wuhan University of Technology
Year
2005
Tongue
English
Weight
862 KB
Volume
20
Category
Article
ISSN
1000-2413

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## Abstract Various segmented polyurethanes with a hard segment content of about 50 wt% were prepared from 4,4′‐diphenylmethane diisocyanate (MDI), a poly(tetramethylene adipate) glycol with an __M__~n~ of 2000, and various combinations of aliphatic diols as chain extenders by a one‐shot, hand‐cast

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## SYNOPSIS N-Cyclohexylmaleimide (CHMI) was synthesized in high yield by dehydration and ring closure of N-cyclohexylmaleamic acid (CHMA) in an organic nonpolar solvent that is immiscible with water in the presence of a catalyst consisting of a mixture of acid and its amine salt. The optimal molar