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Synthesis of Monodisperse Bi-Compartmentalized Amphiphilic Janus Microparticles for Tailored Assembly at the Oil-Water Interface

Title
Synthesis of Monodisperse Bi-Compartmentalized Amphiphilic Janus Microparticles for Tailored Assembly at the Oil-Water Interface
Author
김진웅
Keywords
amphiphilicity; anisotropic phase properties; Janus microparticles; oil-water interfaces
Issue Date
2016-04
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v. 55, NO 14, Page. 4509-4513
Abstract
Janus particles endowed with controlled anisotropies represent promising building blocks and assembly materials because of their asymmetric functionalities. Herein, we show that using the seeded monomer swelling and polymerization technique allows us to obtain bi-compartmentalized Janus microparticles that are generated depending on the phase miscibility of the poly (alkyl acrylate) chains against the polystyrene seed, thus minimizing the interfacial free energy. When tetradecyl acrylate is used, complete compartmentalization into two distinct bulbs can be achieved, while tuning the relative dimension ratio of compartmented bulb against the whole particle. Finally, we have demonstrated that selectively patching the silica nanoparticles onto one of the bulb surfaces gives amphiphilicity to the particles that can assemble at the oil-water interface with a designated level of adhesion, thus leading to development of a highly stable Pickering emulsion system.
URI
http://onlinelibrary.wiley.com/doi/10.1002/anie.201600209/abstract;jsessionid=42455C20402FF3A4973AE21DF0A93D53.f03t02http://hdl.handle.net/20.500.11754/44383
ISSN
1433-7851; 1521-3773
DOI
10.1002/anie.201600209
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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