Structuring of surfaces with polymer brushes through nitroxide mediated polymerization and self-organization

POLY 94

Marion K. Brinks, Marion.Brinks@uni-muenster.de1, Michael Hirtz2, Lifeng Chi2, Harald Fuchs2, and Armido Studer, studer@uni-muenster.de3. (1) Institute of Organic Chemistry and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany, (2) Physics Institute, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany, (3) Institute of Organic Chemistry and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
Surface modification using living radical polymerization is a promising approach for the tuning of the physical and the chemical properties of surfaces. Site-specific surface polymerization allows the preparation of patterned polymer brushes. For preparing polymer brushes via nitroxide mediated polymerization an alkoxyamine initiator was synthesized. To spatially control initiator attachment Langmuir-Blodgett (LB) lithography was applied. Self-organization during LB transfer led to patterned Si-wafers. Covalent attachment of the initiator provided Si-wafers bearing alkoxyamine initiators at defined positions (stripe pattern). Surface initiated polymerization eventually afforded structured polymer brushes. The polymer stripe width could be adjusted (0.2 to 1.3 μm) and several square centimeters could be patterned.

 

General Papers
2:00 PM-4:20 PM, Sunday, April 6, 2008 Hilton New Orleans Riverside -- Grand Salon 4, Oral

Division of Polymer Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008