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Fluoropolyethers end-capped by polar functional groups. II. Effect of catalyst and reagents concentration, solvent nature, and temperature on reaction kinetics of α,ω-bis(hydroxy)-terminated fluoropolyethers with cycloalyphatic and aromatic diisocyanates

✍ Scribed by Leonid Mashlyakovskiy; Elena Khomko; Vladimir Zaiviy; Claudio Tonelli

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 477 KB
Volume: 38
Category: Article
ISSN: 0887-624X
DOI: 10.1002/1099-0518(20000715)38:14<2579::aid-pola90>3.0.co;2-i

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Fluoropolyethers end-capped by polar fun

Fluoropolyethers end-capped by polar functional groups. I. Kinetic approach to the reaction of hydroxy-terminated fluoropolyethers with cycloalyphatic and aromatic diisocyanates

✍ Leonid Mashlyakovskiy; Vladimir Zaiviy; Giovanni Simeone; Claudio Tonelli 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 218 KB 👁 1 views

Urethane reactions of cycloaliphatic and aromatic diisocyanates with hydroxy-terminated fluoropolyethers (FPEs) of various molecular weights and structure, at NCO : OH ϭ 2, have been studied by monitoring, by IR analysis, the rate of decrease in NCO absorbance at 2264 -2268 cm Ϫ1 . Different diisocy