Copolymer at a selective interface and two-dimensional wetting: a grand canonical approach

Citation
C. Monthus et al., Copolymer at a selective interface and two-dimensional wetting: a grand canonical approach, EUR PHY J B, 17(1), 2000, pp. 121-130
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
17
Issue
1
Year of publication
2000
Pages
121 - 130
Database
ISI
SICI code
1434-6028(200009)17:1<121:CAASIA>2.0.ZU;2-W
Abstract
We consider two different problems involving the localization of a single p olymer chain: (i) a periodic AB copolymer at a selective fluid-fluid interf ace, with the upper (resp. lower) fluid attracting A (resp. B) monomers (ii ) a homopolymer chain attracted to a hard wall (wetting). Self avoidance is neglected in both models, which enables us to study their localization tra nsition in a grand canonical approach. We recover the results obtained in p revious studies via transfer matrix methods. Moreover, we calculate in this way the loop length distribution functions in the localized phase. Some fi nite size effects are also determined and tested numerically.