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Engineering of Ultra-Hydrophobic Functional Coatings Using Controlled Aggregation of Bicomponent Core/Shell Janus Particles

Title data

Berger, Sebastian ; Ionov, Leonid ; Synytska, Alla:
Engineering of Ultra-Hydrophobic Functional Coatings Using Controlled Aggregation of Bicomponent Core/Shell Janus Particles.
In: Advanced Functional Materials. Vol. 21 (21 June 2011) Issue 12 . - pp. 2338-2344.
ISSN 1616-301X
DOI: https://doi.org/10.1002/adfm.201100155

Abstract in another language

The morphology and wetting properties of coatings prepared using fully- covered, mono- and bicomponent polymeric Janus particles are investigated and compared. The particles are adsorbed on silica wafers, which were preliminarily coated by thin layers of chemically grafted polymer. The fully-covered particles form hexagonally packed layers with very hydrophobic wetting properties. In contrast, the Janus particles tend to form aggregates. This is possible due to their ability to self-assemble and form hierarchical structured aggregates in dispersions. The deposition of these agglomerates on the substrate leads to the formation of hierarchical rough layers which possess a certain level of fractality. The obtained layers are either very hydrophobic or ultra-hydrophobic, depending on the chemical structure of the polymers grafted to the Janus particles, on the nature of supported substrate, and on the level of aggregation of Janus particles into hierarchical structures. The obtained findings could be very important for design of novel materials with advanced properties.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: janus particles; functional coatings; ultra-hydrophobic coatings; hierarchical structures; fractal dimensions
Institutions of the University: Faculties > Faculty of Engineering Science > Professur Biofabrikation > Professur Biofabrikation - Univ.-Prof. Dr. Leonid Ionov
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Professur Biofabrikation
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 19 Jun 2017 12:44
Last Modified: 20 Jun 2017 08:12
URI: https://eref.uni-bayreuth.de/id/eprint/37677