Berlin 2005 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 9: SYMPOSIUM: Polymer networks and beyond: From molecular structure to materials and biological functions POSTER
CPP 9.7: Poster
Samstag, 5. März 2005, 16:45–18:45, Poster TU D
Multi-compartment micellar networks formed by lipophilic-hydrophilic-fluorophilic triblock copolymers in aqueous solution — •R. Ivanova1, T. B. Bonné1, T. Komenda2, K. Lüdtke2, R. Jordan2, and C. M. Papadakis1 — 1Physik Department E13, TU München, 85747 Garching, Germany — 2Chemie Department, TU München, 85747 Garching, Germany
The self-assembly of novel poly(2-oxazoline)-based lipophilic-hydrophilic-fluorophilic block copolymers in aqueous solution was studied using SANS with the aim to design networks consisting of two separate micelles (i.e. with a lipophilic or a fluorophilic core). It was shown that the block copolymers aggregate into micelles that at high concentrations are expected to form a micellar network. The size and shape of the micelles, the effect of the copolymer concentration and the hydrophilic block length on the structure were studied. The use of neutron scattering allowed us to match the block contrast using D2O/H2O mixtures to determine the structure of the micellar network. The studied block copolymers offer the possibility to design multi-compartment systems able to dissolve two kinds of solvates that have large practical potential e.g. as selective vehicles for drug delivery.