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Kinetics of the vinyl chloride-vinyl acetate copolymer dissolution in cyclohexanone

J. Očadlík, J. Herain, and L. Lapčík

Department of Physical Chemistry, Slovak Technical University, 880 37 Bratislava

 

Abstract:  The kinetics of the vinyl chloride — vinyl acetate copolymer dissolution in cyclohexanone was studied. The values of the induction periods tQ and the rates of dissolution u0c are presented. The kinetic study was performed with four samples. The composition of copolymers was determined by chromatographic analysis of the gaseous products after the pyrolysis of samples (650°C). It has been found that the values of activation parameters corresponding to the diffusion dissolving process vary with temperature in the interval between 10 and 40°C which indicates a low value of Tg occurring in this temperature range.

Full paper in Portable Document Format: 282a151.pdf

 

Chemical Papers 28 (2) 151–156 (1974)

Thursday, June 20, 2024

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