Stimuli-Responsive Y-Shaped Polymer Brushes Based on Junction-Point-Reactive Block Copolymers

A general concept for the preparation of junction‐point‐reactive, amphiphilic Y‐shaped block copolymer brushes for ultrathin polymer films is demonstrated, combining anionic polymerization techniques. The polymer films (1–3 nm) exhibit reversible, stimuli‐responsive wetting behavior upon application...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-11, Vol.24 (41), p.5559-5563
Main Authors: Tonhauser, Christoph, Golriz, Ali A., Moers, Christian, Klein, Rebecca, Butt, Hans-Jürgen, Frey, Holger
Format: Article
Language:English
Subjects:
anionic polymerization
grafting-to method
in-chain functionalized block copolymers
Polymers - chemistry
Polystyrenes - chemistry
Polytetrafluoroethylene - chemistry
Polyvinylpyridine N-Oxide - chemistry
stimuli-responsive wetting
Surface Properties
Temperature
Water - chemistry
Wettability
Y-shaped polymer brushes
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Summary:A general concept for the preparation of junction‐point‐reactive, amphiphilic Y‐shaped block copolymer brushes for ultrathin polymer films is demonstrated, combining anionic polymerization techniques. The polymer films (1–3 nm) exhibit reversible, stimuli‐responsive wetting behavior upon application of different external stimuli (temperature and solvent). Contact angle measurements confirm the reversible hydrophobization with shifts up to 23°.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201202105