Abstract
The surface characteristics of styrene-acrylamide (St-AAm) copolymer latex particles were investigated and their deposition onto polyamide (Nylon 6), polyester (polyethylene terephthalate) and polyacrylonitrile fibers was studied. Conductometric titrations and viscosity measurements of latex dispersions revealed the presence of a water-soluble polymer layer on the particle surface and the thickness of its polymer layer increased with increasing acrylamide fraction in a latex particle. The deposition rates of St-AAm copolymer latices onto Nylon 6 and polyester fibers increased with increasing acrylamide fraction and decreasing pH at a constant ionic strength. These deposition phenomena onto Nylon 6 and polyester fibers agreed qualitatively with prediction based on the electrokinetic data of the latices and the fibers. However, a participation of attractive interaction due to an increase in acrylamide fraction was also suggested.
The deposition rate onto polyacrylonitrile fiber decreased with increasing acrylamide fraction in spite of a decrease in electrostatic repulsive interaction, and it was found that a specific large repulsive interaction acts between polyacrylonitrile fiber and St-AAm copolymer latex particles.
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This paper is part VIII in a series on “Interfacial electrical studies on the deposition of polymer latexes onto fabrics and the removal of these deposited latexes.” Part VII: Tamai H, Kimura I,Suaza T Coll Polym Sci 261: 661 (1983)
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Tamai, H., Iida, A. & Suzawa, T. The surface characterization of styrene-acrylamide copolymer latex particles and their deposition onto fibers. Colloid & Polymer Sci 262, 77–82 (1984). https://doi.org/10.1007/BF01422581
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DOI: https://doi.org/10.1007/BF01422581