𝔖 Bobbio Scriptorium
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Water-vapor-permeable polyurethane resin

✍ Scribed by C. P. Chwang; S. N. Lee; J. T. Yeh; C. Y. Chen; D. Y. Chao

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
268 KB
Volume
86
Category
Article
ISSN
0021-8995

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## Abstract A series of segmented polyurethanes (PUs) were prepared, in which five different polyols and hexamethylene diisocyanate were used as soft segments, and 4,4′‐diphenylmethane diisocyanate, hydrophilic segment poly (ethylene glycol) 200 (PEG 200), and chain extender 1,4‐butanediol were use