Chemical degradation of polyurethanes 3. Degradation of microporous polyurethane elastomer by diethyl phosphonate and tris(1-methyl-2-chloroethyl) phosphate

Add time:07/31/2019    Source:sciencedirect.com

Microporous polyurethane elastomer, based on diphenylmethane diisocyanate (MDI) and polyester polyol-Bayflex 2003E has been converted into a liquid by treatment with diethyl phosphonate and tris(1-methyl-2-chloroethyl) phosphate. The structure of the degraded products has been studied by 1H, 13C and 31P NMR spectroscopy. The degraded products are phosphorus- or phosphorus and chlorine-containing oligomers.

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