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Switching and structuring of binary reactive polymer brush layers

Titelangaben

Ionov, Leonid ; Stamm, Manfred ; Minko, Sergiy ; Hoffmann, Frank ; Wolff, Thomas:
Switching and structuring of binary reactive polymer brush layers.
In: Macromolecular Symposia. Bd. 210 (2004) Heft 1 . - S. 229-235.
ISSN 1521-3900
DOI: https://doi.org/10.1002/masy.200450626

Abstract

Switchable binary polymer brushes grafted to Si-wafers were prepared from hydrophilic and hydrophobic polymer components. When exposed to solvents, either the hydrophobic or the hydrophilic component extends in to the liquid phase, depending on the polarity of the solvent. The hydrophilic component was poly-2-vinylpyridine; the hydrophobic component was made photocrosslinkable in that a polystyrene copolymer containing a photodimerizing chromophore was used. In this system surfaces differing in water contact angle between 60° and 100° can be produced by variation of the solvent. The chromophore was phenylindene, which forms crosslinks upon direct UV-irradiation. Therefore, the polystyrene component can be fixed in the extended or collapsed state. It will be shown that by irradiation through an appropriate mask, surfaces can be structured and the structures fixed. In both the systems structural patterns differing in surface properties were produced and fixed photochemically.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: networks; photochemistry; stimuli-sensitive polymers surfaces; thin films
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften > Professur Biofabrikation > Professur Biofabrikation - Univ.-Prof. Dr. Leonid Ionov
Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Professur Biofabrikation
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Eingestellt am: 20 Jun 2017 11:34
Letzte Änderung: 09 Mär 2022 14:04
URI: https://eref.uni-bayreuth.de/id/eprint/37693