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

Troev K; Atanassov V; Tzevi R

Journal of Applied Polymer Science, Vol.76, No.6, 886-893, 2000

DOI10.1002/(SICI)1097-4628(20000509)76:6<886::AID-APP15>3.0.CO;2-O Export Citation

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

Microporous polyurethane elastomer, based on 4,4＇-diphenylmethane diisocyanate and polyester polyol Bayflex 2003 (Bayer ACT), was degraded by phosphoric acid esters -(CH3CH2O)(3)P(O) and (ClCH2CH2O)(3)P(O)- at 180 degrees C. Structure of degraded products was investigated by means of H-1-, C-13-, and P-31-NMR spectroscopy. (C) 2000 John Wiley & Sons, Inc.