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A kinetic study of vinyl acetate polymerization in aqueous media in the absence of emulsifier
Author(s) -
Nomura M.,
Sasaki S.,
Harada M.,
Eguchi W.
Publication year - 1978
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.1978.070220415
Subject(s) - polymerization , monomer , emulsion polymerization , vinyl acetate , chain growth polymerization , polymer chemistry , bulk polymerization , kinetic chain length , chemistry , aqueous solution , precipitation polymerization , polymer , solution polymerization , radical polymerization , chemical engineering , materials science , copolymer , organic chemistry , engineering
In the absence of emulsifying agents, vinyl acetate polymerization in aqueous media was carried out at 50°C over a wide range of initial initiator and monomer concentrations to clarify the effect of reaction conditions on the kinetic behavior of the polymerization system. It was shown that the rate of polymerization was proportional to reaction time and initiator concentration and independent of the number of polymer particles present. The rate could also be successfully explained by the Smith and Ewart theory for emulsion polymerization when the dissolved monomer in water and the Trommsdorff effect were taken into consideration. A set of equations which could account for the effect of dissolved monomer in water on the rate of polymerization is proposed.