The degradation of polyurethane
β Scribed by R.B. Barendregt; P.J. Van Den Berg
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 864 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-6031
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π SIMILAR VOLUMES
Microporous polyurethane elastomer, based on 4,4Π-diphenylmethane diisocyanate and polyester polyol Bayflex 2003 (Bayer AG), was degraded by phosphoric acid esters O(CH 3 CH 2 O) 3 P(O) and (ClCH 2 CH 2 O) 3 P(O)O at 180Β°C. Structure of degraded products was investigated by means of 1 H-, 13 C-, and
The tensile properties of polyether-based polyurethane (PU) filaments decrease with increasing chlorine concentrations as well as with treatment times. Fourier transform infrared (FTIR) results show the formation of quinoid, azo, and aldehyde groups in the chlorine-treated PU, and increased hydrogen