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Bae J, Russell TP, Hayward RC. Osmotically driven formation of double emulsions stabilized by amphiphilic block copolymers. Angew Chem Int Ed Engl. 2014;53(31):8240-5doi: 10.1002/anie.201405229.
Bae, J., Russell, T. P., & Hayward, R. C. (2014). Osmotically driven formation of double emulsions stabilized by amphiphilic block copolymers. Angewandte Chemie (International ed. in English), 53(31), 8240-5. https://doi.org/10.1002/anie.201405229
Bae, Jinhye, et al. "Osmotically driven formation of double emulsions stabilized by amphiphilic block copolymers." Angewandte Chemie (International ed. in English) vol. 53,31 (2014): 8240-5. doi: https://doi.org/10.1002/anie.201405229
Bae J, Russell TP, Hayward RC. Osmotically driven formation of double emulsions stabilized by amphiphilic block copolymers. Angew Chem Int Ed Engl. 2014 Jul 28;53(31):8240-5. doi: 10.1002/anie.201405229. Epub 2014 Jun 16. PMID: 24931713.
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Angew Chem Int Ed Engl. 2014 Jul 28;53(31):8240-5. doi: 10.1002/anie.201405229. Epub 2014 Jun 16.

Osmotically driven formation of double emulsions stabilized by amphiphilic block copolymers.

Angewandte Chemie (International ed. in English)

Jinhye Bae, Thomas P Russell, Ryan C Hayward

Affiliations

  1. Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, MA 01003 (USA).

PMID: 24931713 DOI: 10.1002/anie.201405229

Abstract

Double emulsions are valuable for the formation of multi-compartmental structures. A variety of pathways to prepare double emulsions have been developed, but high-throughput routes to droplets of controlled size and architecture remain scarce. A new single-step process is introduced for preparation of water-in-oil-in-water double emulsions by a previously unexplained process of self-emulsification. We show that the origin of this process is the osmotic stress resulting from the presence of salt impurities within the amphiphilic block copolymers used for emulsion stabilization. Further, we utilize osmotically driven emulsification to tailor the structures of multiple emulsions, which upon solvent evaporation can yield multi-compartmental capsules or hierarchically structured porous films.

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: emulsions; interfaces; polymers; polymersomes; self-assembly

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