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Encapsulation of Functional Organic Compounds in Nanoglass for Optically Anisotropic Coatings

Title data

Stöter, Matthias ; Biersack, Bernhard ; Rosenfeldt, Sabine ; Leitl, Markus J. ; Kalo, Hussein ; Schobert, Rainer ; Yersin, Hartmut ; Ozin, Geoffrey A. ; Förster, Stephan ; Breu, Josef:
Encapsulation of Functional Organic Compounds in Nanoglass for Optically Anisotropic Coatings.
In: Angewandte Chemie International Edition. Vol. 54 (13 April 2015) Issue 16 . - pp. 4963-4967.
ISSN 1521-3773
DOI: https://doi.org/10.1002/anie.201411137

Abstract in another language

A novel approach is presented for the encapsulation of organic functional molecules between two sheets of 1 nm thin silicate layers, which like glass are transparent and chemically stable. An ordered heterostructure with organic interlayers strictly alternating with osmotically swelling sodium interlayers can be spontaneously delaminated into double stacks with the organic interlayers sandwiched between two silicate layers. The double stacks show high aspect ratios of >1000 (typical lateral extension 5000 nm, thickness 4.5 nm). This newly developed technique can be used to mask hydrophobic functional molecules and render them completely dispersible in water. The combination of the structural anisotropy of the silicate layers and a preferred orientation of molecules confined in the interlayer space allows polymer nanocomposite films to be cast with a well-defined orientation of the encapsulated molecules, thus rendering the optical properties of the nanocoatings anisotropic.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: delamination; encapsulation; host compounds; layered materials; organic-inorganic hybrid composites
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Organic Chemistry I > Chair Organic Chemistry I - Univ.-Prof. Dr. Rainer Schobert
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I > Chair Anorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Organic Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 26 Mar 2018 09:05
Last Modified: 26 Mar 2018 09:05
URI: https://eref.uni-bayreuth.de/id/eprint/12676