Star polymers in correlated disorder

Details Star polymers in correlated disorder Star polymers in correlated disorder

2007-11-23

arxiv.org/abs/0711.3750v1

In: Path Integrals - New Trends and Perspectives, edited by W. Janke and A. Pelster (World Scientific, Singapore, 2008), p. 54

Physics

Condensed Matter

Soft Condensed Matter

Submitted to the Proceedings of the International Conference "Path Integrals - New Trends and Perspectives", September 23-28,

Scientific paper

We analyze the impact of a porous medium (structural disorder) on the scaling of the partition function of a star polymer immersed in a good solvent. We show that corresponding scaling exponents change if the disorder is long-range-correlated and calculate the exponents in the new universality class. A notable finding is that star and chain polymers react in qualitatively different manner on the presence of disorder: the corresponding scaling exponents increase for chains and decrease for stars. We discuss the physical consequences of this difference.

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