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PO: Polymerphysik

PO 16: Copolymere und Polymermischungen

PO 16.2: Talk

Tuesday, March 18, 1997, 16:40–17:00, Gg

Microphase Separation in Model Block Copolymeres — •G. Floudas¹, N. Hadjichristidis², and T. Pakula³ — ¹Foundation for Research and Technology-Hellas (FORTH), P.O. Box 1527, 711 10 Heraklion, Crete, Greece — ²Dept. of Chemistry, University of Athens and FORTH — ³Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany

Rheology and SAXS have been employed to study the order-to-disorder transition in model linear and non-linear block copolymers. Here we review the results on the statics, kinetics and dynamics from (i) linear diblock copolymers, diblock copolymer blends and diblock copolymer/homopolymer blends and (ii) graft and star copolymers and terpolymers based on polyisoprene, polystyrene and polybutadiene. With these systems we address three issues: (a) the effect of macromolecular architecture on the intrinsic compatibility, (b) the effect of macromolecular architecture on the ordering kinetics and (c) the dynamics of tethered chains confined in microstructures.