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Applications of Ultraviolet Resonance Raman Spectroscopy: Residual Olefins in Polypropylene

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Abstract:

Ultraviolet resonance Raman spectroscopy is used to probe residual olefin in polypropylene. Ratio of the olefin band to nonresonantly enhanced polymer modes increase with increasing olefin content. No UV photodamage is evident for samples which are moved through the laser beam. In contrast, an increase in intensity of the olefin band as a function of irradiation time is seen in stationary samples of polymer, which probably indicates photo-oxidative degradation.

Keywords: Olefins; Polypropylene; Ultraviolet resonance Raman

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702914335995

Affiliations: 1: Shell Development Company, Westhollow Research Center, P. O. Box 1380, Houston, Texas 77251-1380 2: Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260

Publication date: August 1, 1991

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