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Chemical degradation of polyurethanes. II. Degradation of microporous polyurethane elastomer by phosphoric acid esters

✍ Scribed by K. Troev; Vl. Atanassov; R. Tzevi

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 173 KB
Volume: 76
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(20000509)76:6<886::aid-app15>3.0.co;2-o

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✦ Synopsis

Microporous polyurethane elastomer, based on 4,4Ј-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 180°C. Structure of degraded products was investigated by means of 1 H-, 13 C-, and 31 P-NMR spectroscopy.

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