Universität zu Köln

Schwering, Regina, Ghosh, David, Strey, Reinhard and Sottmann, Thomas (2015). Sugar-Based Microemulsions as Templates for Nanostructured Materials: A Systematic Phase Behavior Study. J. Chem. Eng. Data, 60 (1). S. 124 - 137. WASHINGTON: AMER CHEMICAL SOC. ISSN 1520-5134

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Abstract

Dynamic self-assembled structures found in complex fluids containing surfactant, water, and oil range from spherical and cylindrical aggregates to bicontinuous microemulsions and ordered liquid crystalline phases. These structures are extensively used as templates for the synthesis of nanomaterials. However, the topology of the initial structures and in particular their characteristic length scales often undergo significant changes during polymerization. Increasing the microemulsion viscosity should slow down its reorganization kinetics and, therewith, help to maintain the microemulsion nanostructure during the polymerization process. In this work, we report on systematic phase behavior studies of a new class of highly viscous microemulsions that comprise of surfactant, polymerizable oil, and concentrated water/(sucrose/trehalose) solutions. It is found that the substitution of H2O by sucrose/trehalose shifts the phase boundaries of nonionic microemulsions to lower temperatures, while the opposite trend holds for ionic microemulsions. Our systematic studies revealed that hydrophilic nonionic alkyl glycosides are the most suitable candidates for the preparation of highly viscous and polymerizable microemulsions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schwering, Regina UNSPECIFIED UNSPECIFIED UNSPECIFIED Ghosh, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Strey, Reinhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Sottmann, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-417563
DOI:	10.1021/je500862w
Journal or Publication Title:	J. Chem. Eng. Data
Volume:	60
Number:	1
Page Range:	S. 124 - 137
Date:	2015
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1520-5134
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MICRO-EMULSION SYSTEMS; LIPOPHILE BALANCE HLB; METHYL-METHACRYLATE; NONIONIC MICROEMULSIONS; ALKYL MONOGLUCOSIDES; POLYMERIC MATERIALS; GENERAL PATTERNS; WATER; OIL; SURFACTANT Multiple languages Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41756