Regensburg 2004 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 1: Polymer Surfaces I
CPP 1.3: Vortrag
Montag, 8. März 2004, 10:15–10:30, H 37
Influence of the chain microstructure in the surface properties of polyketone terpolymers — •Sabine Hild1, Othmar Marti1, Frank Hollmann2, David Perez Foullerat2, and Bernhard Rieger2 — 1Experimental Physics, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm — 2Inorganic Chemistry II, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm
Terpolymers of carbonmonoxide (CO), ethene and propene combine unique physical properties with intrinsic hydrophilic properties. Tailoring the chain microstructure of such polyketones lead to polymeric materials with adjustable mechanical properties. The aim of this study is to investigated if also surface properties, resp. the surface energy, can be influenced by varying the block structure of the copolymers. For this purpose ethylene-CO-propylene-CO-(ECO-PCO) and ethylene-CO-hexene-CO-(ECO-HCO) terpolymers with similar amount of ECO but different block length have been synthesized. This results in copolymers featuring either a triblock or multiblock structure. The surface morphology of this terpolymers is investigated by Scanning Force Microscopy. The surface tension has been estimated by from surface tension measurement. It has been found, that if the ECO content is higher than 50 percent the surface properties are determined by the microstructure of the ECO phase.