In Situ Monitoring of Emulsion Polymerization Using Fiber-Optic Raman Spectroscopy

Authors: Wang, Chao; Vickers, Thomas J.; Schlenoff, Joseph B.; Mann, Charles K.

Source: Applied Spectroscopy, Volume 46, Issue 11, Pages 1597-1752 (November 1992) , pp. 1729-1731(3)

Publisher: Society for Applied Spectroscopy

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Abstract:

The feasibility of a direct quantitative analysis of styrene by Raman spectroscopy during an emulsion polymerization is examined. A dispersive spectrometer fitted with an intensified diode array detector is used with excitation from the 514.5-nm line of an Ar-ion laser. The limits of detection are 0.26 weight percent styrene in the reaction mixture. Raman measurements are compared with those obtained by UV absorption measurements on extracted samples and found to give essentially the same results.

Keywords: Emulsion polymerization; Styrene; Polystyrene; Raman spectroscopy; Quantitative analysis

Document Type: Research article

DOI: http://dx.doi.org/10.1366/0003702924926961

Affiliations: 1: Department of Chemistry, Florida State University, Tallahassee, Florida 32306-3006

Publication date: 1992-11-01

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