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Issue 21, 2011
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Multiple hydrogen bonds induce formation of nanoparticles with internal microemulsion structure by an amphiphilic copolymer

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Abstract

A particulate microemulsion is generated in a simple two-component system comprising an amphiphilic copolymer (Pluronic P123) in mixtures with tannic acid. This is correlated to complexation between the poly(ethylene oxide) in the Pluronic copolymer and the multiple hydrogen bonding units in tannic acid which leads to the breakup of the ordered structure formed in gels of Pluronic copolymers, and the formation of dispersed nanospheres containing a bicontinuous internal structure. These novel nanoparticles termed “emulsomes” are self-stabilized by a coating layer of Pluronic copolymer. The microemulsion exhibits a pearlescent appearance due to selective light scattering from the emulsion droplets. This simple formulation based on a commercial copolymer and a biofunctional and biodegradable additive is expected to find applications in the fast moving consumer goods sector.

Graphical abstract: Multiple hydrogen bonds induce formation of nanoparticles with internal microemulsion structure by an amphiphilic copolymer

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Publication details

The article was received on 06 Jul 2011, accepted on 25 Aug 2011 and first published on 15 Sep 2011


Article type: Paper
DOI: 10.1039/C1SM06267K
Soft Matter, 2011,7, 10116-10121

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    Multiple hydrogen bonds induce formation of nanoparticles with internal microemulsion structure by an amphiphilic copolymer

    A. Dehsorkhi, V. Castelletto, I. W. Hamley and P. J. F. Harris, Soft Matter, 2011, 7, 10116
    DOI: 10.1039/C1SM06267K

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