Effect of Surfactants on Film Formation of Poly (vinyl Acetate) and Poly (vinyl Acetate-butyl Acrylate) Latexes
Effect of ethoxylated nonyl phenol type non-ionic and alkyl sulfate type anionic surfactants on the film formation process of poly (vinyl acetate) and poly (vinyl acetate-acrylate) latexes are discussed. HLB value of non-ionic surfactant is shown to affect glass transition temperature, miniminum film formation temperature and rate of film coalescence of vinyl acrylic latexes. Higher HLB non-ionic surfactant appears to be more compatible than the lower HLB ones with the fairly polar vinyl acrylic latex and form a well coalesced film. Presence of sodium lauryl sulfate in the latex is observed to result in incompatible regions on the latex film surface, typical of two phase morphology.
B. R. Vijayendran et al., "Effect of Surfactants on Film Formation of Poly (vinyl Acetate) and Poly (vinyl Acetate-butyl Acrylate) Latexes," Journal of Dispersion Science and Technology, Taylor & Francis, Jan 1982.
The definitive version is available at http://dx.doi.org/10.1080/01932698208943627
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