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Preparation and properties of polyamide from amine terminated poly(urethane-urea) oligomers

✍ Scribed by Hasan A. Al-Salah

Publisher
Springer
Year
1991
Tongue
English
Weight
289 KB
Volume
26
Category
Article
ISSN
0170-0839

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✍ Richard J. Ambrose; William L. Hergenrother 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 429 KB 👁 2 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