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Colloids Interfaces 2017, 1(1), 3; https://doi.org/10.3390/colloids1010003

The Use of Polymer and Surfactants for the Microencapsulation and Emulsion Stabilization

1
Industrial Engineering department, Kazakh National Research Technical University Named after K. I. Satpayev, 22 Satpayev str., Almaty 050013, Kazakhstan
2
Biotechnology department, M. Auezov South-Kazakhstan State University, 5 Tauke khan, Shymkent 160012, Kazakhstan
3
Chemistry department, South-Kazakhstan State Pedagogical Institute, 13 Baitursynov str., Shymkent 160012, Kazakhstan
4
Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstrasse 69, 14476 Potsdam/Golm, Germany
5
Max-Planck Institute of Colloids and Surfaces, Am Mühlenberg 1 OT Golm, 14476 Potsdam/Golm, Germany
*
Author to whom correspondence should be addressed.
Received: 19 September 2017 / Revised: 13 October 2017 / Accepted: 18 October 2017 / Published: 29 October 2017
(This article belongs to the Special Issue Selected Papers from Bubble & Drop 2017)
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Abstract

Polymer/surfactant mixtures have a wide range of industrial and technological applications, one of them being the use in microencapsulation and emulsion stabilization processes. These mixtures are able to form adsorption layers at the surface of oil droplets and so affect the emulsion stability, which depends on the polyelectrolyte/surfactant nature, concentrations ratio, method of the emulsification, etc. Polyelectrolytes alone show low surface activity in contrast to surfactants, which adsorb at the water/oil interface, making the droplets charged, but they are insufficient to stabilize emulsions. When an oppositely-charged polymer is added to the surfactant solution, a steric barrier is formed, which prevents coalescence and enhances the stability. The present review is devoted to the recent studies of the use of polymer/surfactant mixtures for the encapsulation of active ingredients and stabilization of single and double emulsions. Active ingredients are added to the oil phase prior to emulsification so that any subsequent dissolution of the core, like in other encapsulation protocols, can be omitted. By measuring the interfacial tension and dilational rheology it is possible to find optimum conditions for the emulsion formation and hence for encapsulation. Therefore, such systems have become a prominent approach for the encapsulation of active ingredients. View Full-Text
Keywords: polyelectrolyte/surfactant mixtures; encapsulation; O/W; W/O and W/O/W emulsions; complex formation; interfacial tension; dilational rheology polyelectrolyte/surfactant mixtures; encapsulation; O/W; W/O and W/O/W emulsions; complex formation; interfacial tension; dilational rheology
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Sharipova, A.A.; Aidarova, S.B.; Mutaliyeva, B.Z.; Babayev, A.A.; Issakhov, M.; Issayeva, A.B.; Madybekova, G.M.; Grigoriev, D.O.; Miller, R. The Use of Polymer and Surfactants for the Microencapsulation and Emulsion Stabilization. Colloids Interfaces 2017, 1, 3.

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