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Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization

Kredel, Julia ; Dietz, Christian ; Gallei, Markus (2019):
Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization.
24, In: Molecules, (2), MDPI, ISSN 1420-3049,
DOI: 10.3390/molecules24020333,

Available under: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Title: Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization
Language: English

The preparation of highly ordered colloidal architectures has attracted significant attention and is a rapidly growing field for various applications, e.g., sensors, absorbers, and membranes. A promising technique for the preparation of elastomeric inverse opal films relies on tailored core/shell particle architectures and application of the so-called melt-shear organization technique. Within the present work, a convenient route for the preparation of core/shell particles featuring highly fluorinated shell materials as building blocks is described. As particle core materials, both organic or inorganic (SiO2) particles can be used as a template, followed by a semi-continuous stepwise emulsion polymerization for the synthesis of the soft fluoropolymer shell material. The use of functional monomers as shell-material offers the possibility to create opal and inverse opal films with striking optical properties according to Bragg’s law of diffraction. Due to the presence of fluorinated moieties, the chemical resistance of the final opals and inverse opals is increased. The herein developed fluorine-containing particle-based films feature a low surface energy for the matrix material leading to good hydrophobic properties. Moreover, the low refractive index of the fluoropolymer shell compared to the core (or voids) led to excellent optical properties based on structural colors. The herein described fluoropolymer opals and inverse opals are expected to pave the way toward novel functional materials for application in fields of coatings and optical sensors.

Journal or Publication Title: Molecules
Series Volume: 24
Issue Number: 2
Publisher: MDPI
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: 07 Department of Chemistry > Organ Chemistry
Date Deposited: 30 Oct 2019 12:56
Last Modified: 21 Jan 2020 15:11
DOI: 10.3390/molecules24020333
URN: urn:nbn:de:tuda-tuprints-92330
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/9233
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