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Cross-Linkable Polyelectrolyte Multilayer Films of Tailored Charge Density

Title data

Ott, Patrick ; Gensel, Julia ; Rösler, Sina ; Trenkenschuh, Katja ; Andreeva, Daria V. ; Laschewsky, Andre ; Fery, Andreas:
Cross-Linkable Polyelectrolyte Multilayer Films of Tailored Charge Density.
In: Chemistry of Materials. Vol. 22 (2010) Issue 11 . - pp. 3323-3331.
ISSN 1520-5002
DOI: https://doi.org/10.1021/cm903384e

Official URL: Volltext

Abstract in another language

The layer-by-layer (LbL) deposition technique of anionic and cationic polyelectrolytes allows formation of thin and ultrathin nanostructured films with tunable properties and, therefore, functionality. Here, we report on the synthesis and characterization of new polyelectrolyte multilayer system consisting of anionic copolymer poly(sodium 3-(4-vinylbenzylsulfany1)-propane-1 sulfonate)-co-poly(2-hydroxyethyl-vinylbenzyl sulfoxide) with different charge densities (21, 36, 65, 81, and 100) and cross-linkable cationic poly(4-methyl-1-(4-vinylbenzy1)-pyridinium chloride. We study the impact of salt concentration on film thickness and roughness for the different charge densities and discuss the observed trends with regard to charge effects. Furthermore we covalently cross-link the films by an aldol reaction, which preserves the number of charged groups while being easily followed via UV-vis spectroscopy because of the characteristic absorbance band of the coupling product. Cross-linking increases film stability markedly. Thus the new multilayer system allows tuning of both ionic and covalent cross-linking in a quantitative fashion.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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 > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 09 Dec 2014 16:14
Last Modified: 22 Nov 2016 06:27
URI: https://eref.uni-bayreuth.de/id/eprint/3996