In situ Monitoring of Emulsion Polymerization using Fiber-Optic Raman Spectroscopy

Author:

Wang Chao1,Vickers Thomas J.1,Schlenoff Joseph B.1,Mann Charles K.1

Affiliation:

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

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.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Reference5 articles.

1. Spectroscopic studies of photochemical reactions in organic solids: Photopolymerization of 1,4 bis[β-pyridyl(2)vinyl] benzene

2. Raman spectroscopy with a fiber-optic probe

3. Schrader B., Raman/Infrared Atlas of Organic Compounds (VCH Publishers, New York, 1989), p. F150.

4. The Infra-red Spectra of Complex Molecules

5. Schrader B., Raman/Infrared Atlas of Organic Compounds (VCH Publishers, New York, 1989), p. N03.

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