Poly (Urethane-Urea)s: Part-1
β Scribed by Patel, K. B.; Desai, K. R.; Patel, H. S.
- Book ID
- 126988443
- Publisher
- Taylor and Francis Group
- Year
- 1997
- Tongue
- English
- Weight
- 212 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0091-4037
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Poly(ester urethane ureas) (PesURUs) and poly(ether urethane ureas) (Pe-tURUs) synthesized from diphenylmethane-4,4Π-diisocyanate and poly(butylene adipate) diol, and poly(tetramethylene oxide) diol or poly(propylene oxide) diol, respectively, were hydrolyzed at 70Β°C for various periods up to 16 wee
Two poly(ether urethane urea)s were synthesized, one based on poly(propylene glycol) and another one on poly(tetramethylene glycol). Hydrogenated MDI was used as the diisocyanate and propylenediamine as the chain extender. The diisocyanate : polyol : diamine molar ratio was 2 : 1 : 1 for both copoly