Experimental investigation of vinyl chloride polymerization at high conversion—conversion and tracer response relationships
Article first published online: 10 MAR 2003
Copyright © 1990 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 41, Issue 9-10, pages 2327–2347, 1990
How to Cite
Xie, T. Y., Hamielec, A. E., Wood, P. E., Woods, D. R. and Westmijze, H. (1990), Experimental investigation of vinyl chloride polymerization at high conversion—conversion and tracer response relationships. J. Appl. Polym. Sci., 41: 2327–2347. doi: 10.1002/app.1990.070410934
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 15 FEB 1990
- Manuscript Received: 14 JUL 1989
A model for suspension polymerization which relates the conversion of vinyl chloride monomer (VCM) to polymerization conditions and a tracer response measured by online gas chromatography has been developed. This model can be used to determine monomer conversion with measurements of tracer response by gas chromatograph. A series of experiments using inert mixtures of H2O/PVC/VCM/n-butane and using suspension polymerization of VCM with n-butane as tracer were carried out to evaluate the model. The solubility of n-butane in vinyl chloride was determined in the temperature range 40–70°C. The solubility of n-butane in polyvinylchloride (PVC) was estimated using nonlinear regression comparing model and experimental data for both inert mixtures and for suspension polymerization. Correlations of the solubility constants of n-butane in VCM and PVC, respectively, were obtained from the experimental data. Under the present experimental conditions, conversions can be measured online every 7–8 min using the n-butane tracer method.