Universität zu Köln

Karalus, Steffen, Janke, Wolfhard ORCID: 0000-0002-5165-9097 and Bachmann, Michael (2011). Thermodynamics of polymer adsorption to a flexible membrane. Phys. Rev. E, 84 (3). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1550-2376

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Abstract

We analyze the structural behavior of a single polymer chain grafted to an attractive, flexible surface. Our model is composed of a coarse-grained bead-and-spring polymer and a tethered membrane. By means of extensive parallel tempering Monte Carlo simulations it is shown that the system exhibits a rich phase behavior ranging from highly ordered, compact to extended random coil structures, and from desorbed to completely adsorbed or even partially embedded conformations. These findings are summarized in a pseudophase diagram indicating the predominant class of conformations as a function of the external parameters temperature and polymer-membrane interaction strength. By comparison with adsorption to a stiff membrane surface it is shown that the flexibility of the membrane gives rise to qualitatively new behavior such as stretching of adsorbed conformations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Karalus, Steffen UNSPECIFIED UNSPECIFIED UNSPECIFIED Janke, Wolfhard UNSPECIFIED orcid.org/0000-0002-5165-9097 UNSPECIFIED Bachmann, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-488902
DOI:	10.1103/PhysRevE.84.031803
Journal or Publication Title:	Phys. Rev. E
Volume:	84
Number:	3
Date:	2011
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1550-2376
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SELF-AVOIDING WALKS; MONTE-CARLO; WANG-LANDAU; CHAIN; TRANSITIONS; COLLAPSE; PHASE Multiple languages Physics, Fluids & Plasmas; Physics, Mathematical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48890