Protonation of carboxyl latex particles in the presence of a strong cationic polyelectrolyte

Cakara, Dusko; Chassagne, Claire; Gehin-Delval, Cécile; Borkovec, Michal

doi:10.1016/j.colsurfa.2006.08.006

Scientific article

English

Protonation of carboxyl latex particles in the presence of a strong cationic polyelectrolyte

Contributors

Cakara, Dusko; Chassagne, Claire; Gehin-Delval, Cécile; Borkovec, Michal

Published in

Colloids and surfaces. A, Physicochemical and engineering aspects, vol. 294, no. 1-3, p. 174-180

Publication date

2007

Abstract

The charging behavior of carboxyl latex surface in the presence of poly(diallyl dimethyl ammonium chloride) (DADMAC) was investigated by means of potentiometric titrations and electrophoretic mobility. The titration curves at different ionic strengths show a common crossing point, which coincides with the point of zero mobility, and can be identified with the point of zero charge (PZC). This characteristic behavior is due to the adsorption of the strong cationic polyelectrolyte on the weak acid particle surface, leading to an additional positive charge, and a corresponding shift of the surface potential. These features can be quantified in terms of modified Stern model and the standard electrokinetic model. This model predicts the PZC very well, while the magnitude of the charge and its ionic strength dependence are reproduced only semi-quantitatively

Keywords

Latex
Polyelectrolyte
Potentiometric titration
Electrophoresis
Adsoprtion
Poly(diallyl dimethyl ammonium chloride)
DADMAC

UNIGE affiliation entities

Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

Citation (ISO format)

CAKARA, Dusko et al. Protonation of carboxyl latex particles in the presence of a strong cationic polyelectrolyte. In: Colloids and surfaces. A, Physicochemical and engineering aspects, 2007, vol. 294, n° 1-3, p. 174–180. doi: 10.1016/j.colsurfa.2006.08.006

Article (Published version)

Identifiers

PID : unige:82097
DOI : 10.1016/j.colsurfa.2006.08.006

Additional URL for this publication

http://linkinghub.elsevier.com/retrieve/pii/S0927775706006212

Journal ISSN

0927-7757

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10/03/2016 11:46:00

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10/03/2016 11:46:00

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15/03/2023 00:14:05

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15/03/2023 00:14:05

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31/10/2024 03:03:07

Protonation of carboxyl latex particles in the presence of a strong cationic polyelectrolyte

Contributors

Published in

Publication date

Abstract

Keywords

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

Identifiers

Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation