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  Structurally anisotropic Janus particles with tunable amphiphilicity via polymerization of dynamic complex emulsions

Frank, B. D., Antonietti, M., & Zeininger, L. (2021). Structurally anisotropic Janus particles with tunable amphiphilicity via polymerization of dynamic complex emulsions. Macromolecules, 54(2), 981-987. doi:10.1021/acs.macromol.0c02152.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-8A13-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-D62F-4
Genre: Journal Article

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 Creators:
Frank, Bradley D.1, Author              
Antonietti, Markus2, Author              
Zeininger, Lukas1, Author              
Affiliations:
1Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3179204              
2Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

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Free keywords: Polymer particles; Emulsions; Interfaces; Nanoparticles; Colloidal particles
 Abstract: A facile one-step approach for the synthesis of physically and chemically anisotropic polymer particles with tunable size, shape, composition, wettability, and functionality is reported. Specifically, dynamically reconfigurable oil-in-water Janus emulsions containing photocurable hydrocarbon or fluorocarbon acrylate monomers as one of the droplet phases are used as structural templates to polymerize them into precision Janus particles with highly uniform anomalous morphologies including (hemi-) spheres, lenses, and bowls. During polymerization, each interface is exposed to a different chemical environment, yielding particles with an intrinsic Janus character that can be amplified via side-selective postfunctionalization. The fabrication method allows to start with various common emulsification techniques, thus generating particles in the range of 200 nm –150 μm, also at a technical scale. The anisotropic shape combined with the asymmetric wettability profile of the produced particles promotes their directed self-assembly into colloidal clusters as well as their directional alignment at fluid interfaces. We foresee the application of such Janus particles in technical emulsions or oil recovery, for the manufacturing of programmed self-assembled architectures, and for the engineering of microstructured interfaces.

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Language(s): eng - English
 Dates: 2020-12-072021
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.macromol.0c02152
BibTex Citekey: doi:10.1021/acs.macromol.0c02152
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Title: Macromolecules
  Other : Macromolecules
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 54 (2) Sequence Number: - Start / End Page: 981 - 987 Identifier: ISSN: 0024-9297