Abstract
The surface properties of an acrylonitrile-butadiene-methacrylic acid latex as a function of NaCl and sodium dodecylsulfate (SDS) concentrations, and of pH were studied by Zeta potential measurements and by means of the ESR of two spin probes: the non-ionic C8-TEMP0 (4-octanoyloxy-2,2,6,6-tetramethyl-piperidinyl-1-oxy) and the cationic Temp-TMA+ (4-trimethylammonium -2,2,6,6-tetramethyl-piperidinyl-1-oxy iodide). The variation of Zeta potential as a function of salt addition was demonstrated (from the ESR spectra analysis) to be due to ion adsorption at the latex surface and/or to a change in the interfacial water structure. On the other hand, the variation of the Zeta potential for pH > 9 was suggested to be due to the dissociation of the latex carboxyl groups. The addition of SDS strongly de creased at the latex hydrophobic chain contacts with the solvent.
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© 1989 Plenum Press, New York
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Baglioni, P., Cocciaro, R., Dei, L. (1989). An Esr and Zeta Potential Study of the Surface of a Carboxylated Latex. In: Mittal, K.L. (eds) Surfactants in Solution. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7990-8_31
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DOI: https://doi.org/10.1007/978-1-4615-7990-8_31
Publisher Name: Springer, Boston, MA
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