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Switching and structuring of binary reactive polymer brush layers

Title data

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

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: networks; photochemistry; stimuli-sensitive polymers surfaces; thin films
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: 20 Jun 2017 11:34
Last Modified: 20 Jun 2017 11:34
URI: https://eref.uni-bayreuth.de/id/eprint/37693