Potentiometric titration of monodisperse polystyrene latexes

An attempt has been made to characterize the surface groups of monodisperse latexes by high-precision potentiometric titrations followed by processing of the potentiometric data. The latexes were prepared by emulsion polymerisation in the absence of any added emulsifying agents. The polymerisation w...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry and interfacial electrochemistry 1975-01, Vol.64 (2), p.207-218
Main Authors: Laaksonen, Juhani, Le Bell, Jean C., Stenius, Per
Format: Article
Language:English
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Summary:An attempt has been made to characterize the surface groups of monodisperse latexes by high-precision potentiometric titrations followed by processing of the potentiometric data. The latexes were prepared by emulsion polymerisation in the absence of any added emulsifying agents. The polymerisation was initiated with potassium persulphate. It was found that the concentration of surface groups was too small to allow reliable separation of the effects of surface groups on the titration curves from those of minor experimental uncertainties. The possibility of determining the dissociation constants of the surface groups on latexes with higher charge is discussed.
ISSN:0022-0728
DOI:10.1016/S0022-0728(75)80017-9