FTNMR analysis of siloxane polymers at 200 MHz

TL;DRAbstract

Proton NMR is an accepted method for analyzing silicone cushion material for methyl, phenyl, and vinyl content. Recent interest in the preparation of cushion material with a low vinyl content has required the reevaluation of the NMR method of analysis. The new analytical requirement was that vinyl fragment contents were to be measured at the 0.20 wt % level with an accuracy of 10%. A 200-MHz high resolution Fourier transform NMR spectrometer was used and parameters optimized.

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