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Particle-macromolecule interactions in aqueous solution Part II: Adsorption and flow studies of polyvinylalcohol/polystyrene latex mixtures

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  • Polymer Science
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Summary

The adsorption characteristics of PvOH on a surfactant free polystyrene latex surface have been determined from adsorption isotherm and zeta potential measurements. The concentration and shear dependence of the flow behaviour of surfactant free polystyrene latex alone, and together with PvOH, have also been obtained. The. data show that the marked increase in viscosity observed in polystyrene dispersions upon the addition of PvOH is satisfactorily accounted for by the excluded volume effect of an adsorbed monolayer of PvOH on the polystyrene surface.

Zusammenfassung

Das Adsorptionsverhalten von Polyvinylalkohol an einer Tensidfreien Polystyrollatem-Oberfläche wurde aus Adsorptionsisothermen und Zetapotentialmessungen bestimmt. Außerdem wurde die Konzentrationsund Scherabhängigkeit des Fließverhaltens der Polystyrolteilchen mit und ohne adsorbiertem Polyvinylalkohol ermittelt. Die Viskositätzunahme der Dispersion durch Zugabe von PvOH kann durch das Kovolumen einer monomolekularen adsorbierten PvOH-Schicht gedeutet werden.

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Authors and Affiliations

  1. School of Pharmaceutical Chemistry, University of Bradford, BD7 1DP, Bradford, England

    D. Eagland & G. C. Wardlaw

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  1. D. Eagland
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  2. G. C. Wardlaw
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Eagland, D., Wardlaw, G.C. Particle-macromolecule interactions in aqueous solution Part II: Adsorption and flow studies of polyvinylalcohol/polystyrene latex mixtures. Colloid & Polymer Sci 256, 1079–1084 (1978). https://doi.org/10.1007/BF01638298

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  • DOI: https://doi.org/10.1007/BF01638298

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