Collège Doctoral - Doktorandenkollegien

Statistical Physics of Complex Systems

Coventry - Leipzig - Lviv - Nancy

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Seminar

Disorder effects on the shapes of linear and star branched polymers
Yurij Holovatch
ICMP Lviv
le Wednesday 24 October 2012 à 10h25
Salle de séminaire du groupe de Physique Statistique
Flexible polymer macromolecules in dilute solutions form crumpled coils with a global shape, which greatly differs from spherical symmetry and is surprisingly anisotropic, as it has been found experimentally and confirmed in many analytical and numerical investigations. In this talk, I will discuss, how the shape can be quantified within universal characteristics and how to calculate these characteristics analytically. Using the field theoretical renormalization group approach the effect of structural disorder in the environment on the universal properties of chain and star polymer macromolecules will be analyzed. The talk is based on recent work performed in collaboration with V. Blavatska and C. von Ferber: Phys. Lett. A 374 (2010) 2861; Condens. Matter Phys. 14 (2011) 33701; ibid. 15 (2012) to appear (arXiv:1207.2881).


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