Thermoelastic properties of urethane elastomers
β Scribed by W. Nierzwicki; E. Szpilewicz
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 324 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
A new class of poly(amide-imide-urethane) thermoplastic elastomers based on two-step synthesis of 4,4@-methylene bis(4-phenylisocyanate) with di β erent polyols (PPG and PTMG) and trimellitic anhydride was synthesized. Both resulting polymers showed semicrystalline structures and were readily soluble
Several polyurethanes were prepared from polyethylene adipate glycol, 4,4'-diphenylmethane diisocyanate, 1.4-butanedio1, and 3,3'-dichloro-4,4'-diaminodiphenylmethane. The temperature dependence of swelling and dynamic mechanical properties were determined. Analysis of the data shows that microphase