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The copolymerization of vinyl chloride with 1‐olefins. I. A new method of investigation of the kinetics of homopolymerization and copolymerization of vinyl chloride
Author(s) -
Mrázek Zdeněk,
Jungwirt Arnošt,
Kolínský Miloslav
Publication year - 1982
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.1982.070270510
Subject(s) - vinyl chloride , copolymer , monomer , gravimetric analysis , suspension polymerization , kinetics , polymer chemistry , reproducibility , materials science , chloride , chemistry , chromatography , organic chemistry , polymer , physics , quantum mechanics
The indirect volumetric method following the amount of monomers in the heterogeneous liquid reaction mixture in a constant volume of samples periodically withdrawn by means of gas chromatography. This new method utilizes periodic sampling of the heterogeneous reaction mixture from the reactor during the reaction and gas chromatographic determination of the unreacted monomers contained in the sample. Its suitability and reliability were verified for the suspension homopolymerization of vinyl chloride. The reproducibility of sampling and the accuracy of determination of the degree of conversion and of the initial reaction rate were investigated. The conversion curves obtained by this method are compared with those obtained by the classical gravimetric method.