Surface characterization of novel amphiphilic hyperbranched copolymers

PMSE 32

Sergiy Peleshanko, sergiy@gatech.edu1, Ray Gunawidjaja, rayguna@iastate.edu2, 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, 2220 Hoover Hall, Ames, IA 50011
Branched macromolecules with a cascade, tree-like architecture are promising candidates for functional supramolecular materials. The combinations of amorphous polystyrene (PS) which is hydrophobic; with either nonionic and highly crystalline polyethylene oxide (PEO) is among which that is widely studied. Particularly for PEO-PS copolymer system on solid substrate, its star-shaped copolymers form morphology that is qualitatively not too different from its linear counterparts—except for different aggregation behaviors especially at higher surface pressure. Introduced by Fréchet in 1995, the self-condensing vinyl polymerization (SVCP) allowed to synthesize a variety of the functionalized hyperbranched polymers. This study is concerned with synthesis and surface properties of monolayers of amphiphilic hyperbranched copolymers with different architectures and chemical composition. Here we describe characterization of the surface behavior of hyperbranched copolymers at the air-water and air-solid interface.
 

Block Copolymers as Nanoscale Materials
8:00 AM-11:45 AM, Sunday, 10 September 2006 San Francisco Marriott -- Salon 7, Oral

Division of Polymeric Materials: Science & Engineering

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