Berlin 2008 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 34: POSTERS Polymerphysics

CPP 34.49: Poster

Thursday, February 28, 2008, 17:00–19:30, Poster A

Self Assembly of Block Copolymer Micelles — •Michael Ströbl, Gerald Johannes Schneider, Jörg Stellbrink, Jürgen Allgaier, and Dieter Richter — Institut für Festkörperforschung, Forschungszentrum Jülich, 52425 Jülich

Amphiphilic diblock copolymers play a crucial role in basic research as well as in applied science. In aqueous solution these diblock copolymes form micelles, which structure depends on the interfacial tension between the hydrophobic block and the selective solvent.

Using recently synthesized poly(alkyleneoxide)-poly(ethyleneoxide) block copolymers (PAO-PEO) the variation of the interfacial tension can now be achieved by changing the monomer of the hydrophobic block but keeping the same solvent, i.e. water. In the homologue series propyleneoxide (PPO), butyleneoxide (PBO), hexyleneoxide (PHO), and octyleneoxide (POO) the hydrophobicity increases continuously due to the growing aliphatic side group.

We present the results of static light scattering experiments and small angle neutron scattering experiments on the samples mentioned above.