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Stabilization of Inverse Miniemulsions by Silyl-Protected Homopolymers

Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, 55128 Mainz, Germany
Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
Authors to whom correspondence should be addressed.
Academic Editor: Paschalis Alexandridis
Polymers 2016, 8(8), 303;
Received: 24 May 2016 / Revised: 1 August 2016 / Accepted: 2 August 2016 / Published: 12 August 2016
PDF [3328 KB, uploaded 12 August 2016]


Inverse (water-in-oil) miniemulsions are an important method to encapsulate hydrophilic payloads such as oligonucleotides or peptides. However, the stabilization of inverse miniemulsions usually requires block copolymers that are difficult to synthesize and/or cannot be easily removed after transfer from a hydrophobic continuous phase to an aqueous continuous phase. We describe here a new strategy for the synthesis of a surfactant for inverse miniemulsions by radical addition–fragmentation chain transfer (RAFT) polymerization, which consists in a homopolymer with triisopropylsilyl protecting groups. The protecting groups ensure the efficient stabilization of the inverse (water-in-oil, w/o) miniemulsions. Nanocapsules can be formed and the protecting group can be subsequently cleaved for the re-dispersion of nanocapsules in an aqueous medium with a minimal amount of additional surfactant. View Full-Text
Keywords: miniemulsion; nanocapsules; phase transfer; radical addition fragmentation transfer polymerization; surfactant miniemulsion; nanocapsules; phase transfer; radical addition fragmentation transfer polymerization; surfactant

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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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Wald, S.; Wurm, F.R.; Landfester, K.; Crespy, D. Stabilization of Inverse Miniemulsions by Silyl-Protected Homopolymers. Polymers 2016, 8, 303.

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