Surface behavior of pH-responsive ABC terpolymers

POLY 469

Sergiy Peleshanko, sergiy@gatech.edu1, Taisia V. Tsukruk2, Matthew D. Goodman2, Vasiliki Sfika3, Constantinos Tsitsilianis, ct@chemeng.upatras.gr3, and Vladimir V. Tsukruk, vladimir@iastate.edu2. (1) School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, NW, Atlanta, GA 30332, (2) Department of Materials Science and Engineering, Iowa State University, Ames, IA 50010, (3) Department of Chemical Engineering, University of Patras, Patras, 26504, Greece
Over the last few years, much attention has been devoted to the study of stimuli responsive block copolymers, containing pH- or thermo-sensitive blocks. These polymeric systems attract the interest among scientific community due to their attractive potential applications in drug delivery systems and self-assembly nanopatterning. One of the most promising systems is block polyampholytes, so called zwitterionic block copolymers, which contain in the same macromolecule weak anionic and cationic polyelectrolyte blocks. The pH dependence of the ionization ability of these blocks controls the behavior of the copolymer in aqueous media. In a certain pH range these copolymers may exist in molecular dissolution state while they self-assemble in other pH regions. This study we report on the surface behavior and self-assembly of of a poly(2-vinylpyridineb-poly(methyl methacrylate)-b-(poly(acrylic acid) block terpolymer (P2VP-PMMA-PAA) at interfaces.
 

Multicompartment Micelles: Higher Order Self-Assembly of Block Copolymers
6:00 PM-8:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006