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Reaction kinetics of vinyl acetate emulsion polymerization

โœ Scribed by Chorng-Shyan Chern; Gary W. Poehlein

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
913 KB
Volume
33
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

Transport of free radicals out of latex particles into the aqueous phase plays an important role in the emulsion polymerization of vinyl acetate. This so-called "desorption" process involves chain transfer to monomer which generates a mobile an8 rather stable monomer-unit free radical followed by the difFusion of this free radical out of the latex particle. A kinetic model is developed based on the reaction mechaniws of such an emulsion system. The experimental data available in the literature are used to test the model under various polymerization conditions. Reasonable agreement between the model predictions and experimental data is observed.

๐Ÿ“œ SIMILAR VOLUMES

Kinetics of vinyl chloride and vinyl ace
Kinetics of vinyl chloride and vinyl acetate emulsion polymerization
โœ N. Friis; A. E. Hamielec ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 707 KB

## Abstract The kinetics of vinyl chloride and vinyl acetate emulsion polymerization are reexamined. The validity of Ugelstad's model for systems with high desorption rate is confirmed by simulating conversion histories for both systems at different initiator concentrations and particle numbers. On

A kinetic study of the emulsion polymeri
A kinetic study of the emulsion polymerization of vinyl acetate
โœ N. Friis; L. Nyhagen ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 697 KB

The emulsion polymerization of vinyl acetate was studied a t 50ยฐC. It was found that the rate of polymerization was proportional to the 0.5 power of the initiator concentration and the 0.25 power of the number of particles. The number of particles was proportional to the power 0.5 f 0.05 of the emul

Kinetics and mechanism of the emulsion p
Kinetics and mechanism of the emulsion polymerization of vinyl acetate by redox initiation
โœ A. S. Badran; S. M. M. Shendy ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 674 KB

Kinetics and mechanism of the emulsion polymerization of vinyl acetate by redox initiation ## 2. L.cperittwnlrt1 'l'lie experimental riiethods crnployt:tl wen: itlentical with ttiosc described previously [17, IS]. The image analyzer (Biltlanalyse IBAS 1 arid 3) was used to measure t h e average d

Radiation-induced emulsion polymerizatio
Radiation-induced emulsion polymerization of vinyl acetate and styrene
โœ V. Stannett; J. A. Gervasi; J. J. Kearney; K. Araki ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 801 KB

Studies have been made of the 7-induced emulsion polymerization of styrene and comparisons made with chemically initiated emulsion polymerization. The polymerization proceeded smoothly to high conversions at 0 and 60ยฐC, the reaction showing a high G (monomer) value. Complete conversions were obtaine