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Title of Journal: Colloid Polym Sci

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Abbravation: Colloid and Polymer Science

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Springer-Verlag

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DOI

10.1016/0169-7439(92)90019-c

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1435-1536

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Electrophoretic mobility evidence of surfactant pa

Authors: Eric Vignola Kurt A Wood Lotfi Hedhli
Publish Date: 2003/05/21
Volume: 282, Issue: 1, Pages: 64-68
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Abstract

In order to enhance substrate adhesion and pigment dispersion of fluorinated polymers polyvinylidene fluoride PVDF type fluoropolymers are often used in combination with certain amounts of acrylics in paint formulations We prepared an acrylic modified fluoropolymer AMF 1 latex by emulsion polymerization and monitored the effect of the addition of typical coalescents TEX DPM DGB and EGB on the stability of an AMF latex Both the effect on the bare latex and on surfactant postadded latex were investigated No particular effect was noticed on the bare latex itself but when surfactant is adsorbed initially to the particle surface we observed surfactant partitioning between the polymer interface and the water phase with different partitioning ratios depending on the coalescing solvent type This leads to the presence of labile peaks in the electrophoretic mobility spectra and possible surfactant desorption from the AMF surface with consequent latex destabilization

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