Experimental investigation of vinyl chloride polymerization at high conversion—conversion and tracer response relationships | Zendy

Xie T. Y. | Zendy; Hamielec A. E. | Zendy; Wood P. E. | Zendy; Woods D. R. | Zendy; Westmijze H. | Zendy

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Experimental investigation of vinyl chloride polymerization at high conversion—conversion and tracer response relationships

Author(s) -

Xie T. Y.,

Hamielec A. E.,

Wood P. E.,

Woods D. R.,

Westmijze H.

Publication year - 1990

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1990.070410934

Subject(s) - vinyl chloride , butane , suspension polymerization , polymerization , tracer , monomer , solubility , polyvinyl chloride , materials science , inert , chloride , inert gas , polymer chemistry , chemistry , analytical chemistry (journal) , polymer , chromatography , organic chemistry , catalysis , composite material , copolymer , physics , nuclear physics

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 H 2 O/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.

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