Nanolayer Reinforcement of Elastomeric Polyurethane
โ Scribed by Wang, Zhen; Pinnavaia, Thomas J.
- Book ID
- 120991139
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 54 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0897-4756
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๐ SIMILAR VOLUMES
The viscoelastic properties of some polyester-urethanes are compared with the properties of other polymers. The behavior observed is anomalous in that these polyurethanes exhibit an unusually high value of modulus well above their T,, unaccounted for by either crosslinking or crystallinity. Various
Degradative characteristics were studied using specimens of three polyurethane-based elastomeric modules that were treated in solutions of varying acidity, oxygen content and temperature. After periods of 10 and 100 days, molecular weight distribution changes, mechanical property changes and element