Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 290, Issue 10, Pages 1025-1028Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.200500241
Keywords
composite polymers; gels; inverse emulsion; organo-gelator; (w/o) miniemulsion; photopolymerization
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A new strategy for the synthesis of composite polymers with larger volume fraction of aqueous inclusions less than 1 mu m in diameter is presented. A water-in-oil mini-emulsion of aqueous droplets in a continuous, cross-linkable monomer phase is prepared. The addition of an organogelator allows the immobilization of the droplets in a solid gel, thus avoiding the usual demixing upon polymerization of the continuous phase. This pregelled system is then converted into a composite polymer by photoinitiated free radical polymerization. Such coatings may be used for an improved climate control of buildings or as a deposit for the controlled release of actives from polar nano-droplets.
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