Multifunctional Amino-Terminated Polyurethanes : Their Preparation and Use as Crosslinkers in Shrink-Resist Polymers for Wool
| Autor: | B. O. Bateup, B. E. Fleischfresser |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Materials science Polymers and Plastics Protonation 02 engineering and technology Polymer 021001 nanoscience & nanotechnology 01 natural sciences Isocyanate chemistry.chemical_compound Water soluble Resist chemistry Wool 0103 physical sciences Polymer chemistry Urea Chemical Engineering (miscellaneous) Organic chemistry 0210 nano-technology |
| Zdroj: | Textile Research Journal. 48:417-421 |
| ISSN: | 1746-7748 0040-5175 |
| DOI: | 10.1177/004051757804800709 |
| Popis: | A simple, rapid method for converting water-insoluble polyisocyanates into either water soluble (or water-dispersible multifunctional amino-terminated polyurethanes or self-crosslinkable polymers containing protonated an ino groups and blocked isocyanate groups is descried. Both types of product are suitable for shrink resisting wool, the self-crosslinkable polymers can be used alone, whereas the polyamines need to be combined with poly mers containing groups capable of reaction with amino groups. The effective functionalites of the amino-terminated polyurethanes correlated well with the values calculated from the known functionality of the reactants, which suggests that chain extension via urea formation was suppressed by this preparative procedure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|