Photophysics of a naphthalene diisocyanate-based polyurethane
β Scribed by Hoyle, Charles E.; Kim, Kyu Jun
- Book ID
- 127206553
- Publisher
- American Chemical Society
- Year
- 1987
- Tongue
- English
- Weight
- 496 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0024-9297
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π SIMILAR VOLUMES
## Abstract The structure of the crystalline hard domains of polyurethane elastomers based on 1,5βnaphthalene diisocyanate (NDI) has been investigated by Xβray methods. The specimens were pressed films prepared from NDI and 1,4βbutanediol (chain extender), with poly(oxytetramethylene) as the soft s
Based on aromatic diisocyanate [e.g., 2,4-tolylene diisocyanate (TDI)], a novel synthetic strategy to waterborne polyurethanes was introduced. Ionized polyoxyethylated amine (NPEO) played an important role in the preparation process as both a polyether soft segment and an internal emulsifier. First,