Abstract
The alternate multiple adsorption layers of macrocations and macroanions on the surfaces of colloidal spheres, in which the complexation mixtures are deionized with ion-exchange resins are studied with help of the electrophoretic light-scattering, dynamic light-scattering and transmitted electron-microscopy techniques. The results are compared with those without resins. Colloidal silica spheres (110 nm in diameter) and monodispersed polystyrene spheres (220 nm) are used as colloidal spheres. The macrocations used are poly (4-vinyl-N-n-butyl pyridinium bromide) and poly (allylamine hydrochloride). Sodium poly (styrene sulfonate) and sodium polyacrylate are used as macroanions. The macroion-colloid complexations are formed firmly when the complexation suspensions are deionized with the resins.
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Acknowledgements
Drs. M. Komatsu and M. Hirai of Catalysts & Chemicals Ind. Co. (Tokyo) are thanked for providing the silica samples.
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Okubo, T., Suda, M. & Tsuchida, A. Alternate multi-layered adsorption of macro-cations and -anions on the colloidal spheres. Influence of the deionization of the complexation mixtures with coexistence of the ion-exchange resins. Colloid Polym Sci 284, 284–292 (2005). https://doi.org/10.1007/s00396-005-1374-6
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DOI: https://doi.org/10.1007/s00396-005-1374-6