The products and mechanism of the thermal oxidative degradation of poly(ethylene oxide) at 150 °C have been analysed using 13 C NMR spectroscopy. The analysis was assisted by the use of distortionless enhancement by polarisation transfer spectra, longitudinal relaxation time measurements, long‐range 13 C 1 H coupling and chemical shift simulation software. The major result of degradation was chain scission resulting in two formate ester chain ends. Minor products were in‐chain esters, peroxy groups, oxymethylene links and hydroxy and methoxy chain ends. Initial steps for the mechanism of chain scission. magnified image Initial steps for the mechanism of chain scission.
No takes yet. Share an insight, caveat, or question.
Mkhatresh et al. (2002) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: