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Development of polyurethane engineering thermoplastics. II. Structure and properties

✍ Scribed by Patrica M. Frontini; Marta Rink; Andrea Pavan

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
672 KB
Volume
48
Category
Article
ISSN
0021-8995

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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