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Colloid and Polymer Science
Published in: Colloid and Polymer Science 10/2009

01-10-2009 | Original Contribution

Polyampholyte-modified ionic microemulsions

Authors: Mabya Fechner, Markus Kramer, Erich Kleinpeter, Joachim Koetz

Published in: Colloid and Polymer Science | Issue 10/2009

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Abstract

This paper is focused on the influence of added polyampholyte, namely poly(N,N′-diallyl-N,N′-dimethyl-alt-maleamic carboxylate) on the inverse micellar phase range of the pseudo-ternary system consisting of toluene–pentanol (1:1)/SDS/water in dependence on the pH value and the temperature. Investigations on phase behavior have revealed that a greater extension in direction to the water-rich corner can be found at pH 4 compared to pH 9. In order to understand changes in the microstructure, polymer–surfactant interactions in dependence on pH have been examined by means of diffusion-ordered spectroscopy, differential scanning calorimetry, as well as conductivity measurements. The results have proven that the present microemulsion consists of water-in-oil droplets, with the polyampholyte located more in the inner core of the water droplets at pH 9 rather than at the interphase of the surfactant film at pH 4.
previous article Synthesis and characterization of miniemulsion copolymers of methyl methacrylate (or styrene) and stearyl methacrylate
next article Dissipative crystallization of aqueous solution of sodium polymethacrylate

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Appendix
Available only for authorised users
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Metadata
Title
Polyampholyte-modified ionic microemulsions
Authors
Mabya Fechner
Markus Kramer
Erich Kleinpeter
Joachim Koetz
Publication date
01-10-2009
Publisher
Springer-Verlag
Published in
Colloid and Polymer Science / Issue 10/2009
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-009-2074-4

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