Berlin 2012 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 32: Soft Matter II
DY 32.9: Talk
Friday, March 30, 2012, 12:00–12:15, MA 144
Randomly Charged Polymers in Porous Environments — Viktoria Blavatska1 and •Christian von Ferber2,3 — 1Institute for Condensed Matter Physics, NAS Ukraine, UA-79011 Lviv — 2Applied Mathematics Research Centre, Coventry University, Coventry, UK — 3Theoretische Polymerphysik, Universitat Freiburg, 79104 Freiburg
Macromolecules in solution as they are encountered in chemical and biological physics may often be described as long flexible chains. Their conformations are strongly influenced by monomer-monomer interactions. In the absence of other interactions the excluded volume interaction governs the behaviour in the long chain limit. Here, however we we consider the influence of two additional effects namely positive or negative charges along the chain (as observed e.g. for peptides) and secondly a disordered environment that displays long range correlations (that decay with a power law). Both of these long range effects induce additional interactions. We discuss in detail the interplay between these three interactions and determine the situations in which they may govern the conformational behaviour of the polymer.