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Synthesis and properties of novel polyurethane-urea insulating coatings from hydroxyl-terminated prepolymers and blocked isocyanate curing agent

✍ Scribed by Hamid Reza Moeini


Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
221 KB
Volume
112
Category
Article
ISSN
0021-8995

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Block polymers from isocyanate-terminate
✍ Richard J. Ambrose; William L. Hergenrother 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 429 KB 👁 1 views

## Abstract Isoprene–urea and butadiene–urea block polymers have been prepared by reaction of isocyanate‐terminated prepolymers with diamines and diisocyanates. It was found that the per cent of blocked urea in these copolymers is dependent on the isocyanate–diamine stoichiometry. Stress–strain dat