Effect of itaconic acid on the wet scrub resistance of highly pigmented paints for architectural coatings

Effect of itaconic acid on the wet scrub resistance of highly pigmented paints for architectural coatings

Author Oliveira, Mauricio Pinheiro de Google Scholar
Silva, Caroline Reggiani Google Scholar
Guerrini, Lilia Mueller Autor UNIFESP Google Scholar
Institution BASF SA R&D
Universidade Federal de São Paulo (UNIFESP)
Abstract This study investigates the influence of carboxylic monomers, such as itaconic acid (IA), on the colloidal properties of the latexes made by semi-continuous emulsion copolymerization of styrene (STy) with n-butyl acrylate (BA). A number of copolymerization runs were carried out with different IA concentrations. the effect of functional monomer on the overall conversion, the colloidal properties of the latexes, and the distribution of the carboxylic groups (buried, particle surface and aqueous phase) were examined. the carboxylic groups present in the latexes were analyzed using conductimetric and potentiometric titrations. the behavior of the IA on the wet scrub resistance of highly pigmented paints for architectural coatings was examined and correlated with the distribution of the carboxylic groups. the results obtained showed that the properties of highly pigmented paints are greatly dependent on the amount and distribution of the carboxylic groups. the carboxylic acid distributed in the aqueous phase has a strong influence on the wet scrub resistance and on the characteristics of the final products.
Keywords Functionalized latex
Wet scrub resistance
Itaconic acid
Emulsion polymerization
Highly pigmented paints
Language English
Date 2011-07-01
Published in Journal of Coatings Technology and Research. New York: Springer, v. 8, n. 4, p. 439-447, 2011.
ISSN 1547-0091 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 439-447
Origin http://dx.doi.org/10.1007/s11998-010-9317-7
Access rights Closed access
Type Article
Web of Science ID WOS:000291492200001
URI http://repositorio.unifesp.br/handle/11600/33849

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