Evaluation of field desorption mass spectrometry for the analysis of polyethylene |
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| Authors: | William J. Evans Donna M. DeCoster John Greaves |
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| Affiliation: | 1. Department of Chemistry, University of California-Irvine, Irvine, California, USA
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| Abstract: | Field desorption mass spectrometry (FD-MS) has been evaluated for the analysis of low molecular weight polyethylene by using samples in the molecular weight range 600–2000 u as determined by gel permeation chromatography. The repeat units and end groups were characterized by FD-MS, but it was demonstrated that accurate molecular weight distribution data cannot be obtained for polyethylene by FD-MS because there is mass discrimination against the higher molecular weight polymers. |
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