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Chemical degradation of polyurethanes: Degradation of flexible polyester polyurethane foam by phosphonic acid dialkyl esters
Author(s) -
Troev K.,
Tsekova A.,
Tsevi R.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001227)78:14<2565::aid-app180>3.0.co;2-h
Subject(s) - polyurethane , phosphonate , polyol , polyester , degradation (telecommunications) , toluene , polymer chemistry , materials science , reaction mechanism , organic chemistry , chemistry , catalysis , composite material , telecommunications , computer science
Flexible polyurethane foam based on toluene diisocyanate and polyester polyol has been liquefied by treatment with either dimethyl phosphonate (CH 3 O) 2 P(O)H or diethyl phosphonate (C 2 H 5 O) 2 P(O)H at 160°C. The product degraded has been studies by 1 H, 13 C, and 31 P nuclear magnetic resonance (NMR) spectroscopy. The likely reaction mechanism is presented. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 2565–2573, 2000