Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 11: POSTER Disperse Polymer Systems

CPP 11.11: Poster

Dienstag, 28. März 2006, 17:00–19:00, P3

Conformational properties of dendritic block copolymer of first generation — •Marios Kosmas — Chemistry Department,University of Ioannina,Greece

Our previous works on linear and star polymers are extended to dendritic block copolymer chains of an extra generation and two different species. On the ends of a star of fa branches of molecular weight Na each, which constitute the inner region of the dendrimer the new generation is built. This outer generation consits of fa new stars each one of fb branches having totally fafb branches eachone having a molecular weight Nb. Working at the critical dimensionality d=4 above which polymer chains behave ideally we determine the radius of gyration of the dendritic block copolymer and average angles between the branches, in an effort to see the effects of the two different molecular weights, the two different number of branches and the rest characteristics of the chain and the solvent, on the conformational behavior of the macromolecule. Two macroscopic properties are analysed.The positions of the end groups which determine the activity of the macromolecule and the empty spaces inside the chain which make the macromolecule a good carrier of smaller species.