Butyl Acrylate/Vinyl Acetate Miniemulsion Polymerization: A Study on Compartmentalization

A series of butyl acrylate/vinyl acetate miniemulsions were investigated. Two procedures were used to prepare the miniemulsions: one in which the monomers were mixed together, sonicated, and polymerized, and the other, in which the individual monomers were sonicated prior to mixing and then polymeri...

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Bibliographic Details
Published inMacromolecular chemistry and physics Vol. 205; no. 7; pp. 958 - 965
Main Authors Jovanovic, Renata, Dubé, Marc A.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.05.2004
WILEY‐VCH Verlag
Wiley
Subjects
Applied sciences
butyl acrylate
Copolymerization
Exact sciences and technology
miniemulsion
Organic polymers
Physicochemistry of polymers
Preparation, kinetics, thermodynamics, mechanism and catalysts
radical polymerization
vinyl acetate
Particle size
Vinyl acetate copolymer
Emulsion copolymerization
Emulsification
Kinetics
Radical copolymerization
Experimental study
Butyl acrylate copolymer
Comparative study
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Summary:A series of butyl acrylate/vinyl acetate miniemulsions were investigated. Two procedures were used to prepare the miniemulsions: one in which the monomers were mixed together, sonicated, and polymerized, and the other, in which the individual monomers were sonicated prior to mixing and then polymerized. Kinetic and final properties of the obtained polymers were compared. The two procedures offer interesting insights into monomer compartmentalization in miniemulsions. In most cases, there were no differences in monomer conversion, copolymer composition, particle size or average molecular weights between the two procedures. ATR‐FTIR spectroscopy was used to assess possible monomer transfer. The spectra obtained from each polymerization procedure were compared and no evidence of compartmentalization was found. Both procedures yielded similar spectra indicating that monomer transfer between particles occurred. In addition, adhesive properties of the obtained latexes were investigated. Due to the fact that relatively large amounts of CTA were used, adhesive performance was poor. Comparison of the spectra of miniemulsion polymerizations obtained by two different procedures (BA/VAc 85/15 wt/wt).
Bibliography:istex:60C17C8CDA8B02FC062A615C74F2E9B1D031E701
ark:/67375/WNG-75LQ9H2V-G
ArticleID:MACP200300121
ISSN:1022-1352
1521-3935
DOI:10.1002/macp.200300121