Polyurethane-Urea Anionomer Dispersions. II
| Autor: | Kurt C. Frisch, Hong Xiao, Nelson Malwitz, Han X. Xiao |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Materials science
Polymers and Plastics Toluene diisocyanate Extender General Chemistry Dynamic mechanical analysis Isocyanate law.invention chemistry.chemical_compound Differential scanning calorimetry chemistry law Polymer chemistry Materials Chemistry Ceramics and Composites Urea Ionomer Polyurethane |
| Zdroj: | Journal of Macromolecular Science, Part A. 32:169-177 |
| ISSN: | 1520-5738 1060-1325 |
| DOI: | 10.1080/10601329508011154 |
| Popis: | Polyurethane-urea anionomer dispersions containing about 50% hard segments were prepared from poly(oxypropylene) glycols, toluene diisocyanate (TDI), or a mixture of TDI and polymeric MDI (PMDI), dimethylolpropionic acid (DMPA), 1,4-butanediol (BD), and different diamines as chain extenders. The structure-properties relationships of these polyurethane-urea anionomers were studied. The effects of compositional ratio, type of chain extender, and isocyanate structure on the morphology and properties of the dispersion-cast films were investigated by means of differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and determination of mechanical properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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