Chemical degradation of polyurethanes: Degradation of flexible polyester polyurethane foam by phosphonic acid dialkyl esters

Chemical degradation of polyurethanes. I

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

✍ K. Troev; Vl. Atanassov; R. Tzevi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB

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