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:
CreatorsEmailORCIDORCID Put Code
Karalus, SteffenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Janke, WolfhardUNSPECIFIEDorcid.org/0000-0002-5165-9097UNSPECIFIED
Bachmann, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
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:
KeywordsLanguage
SELF-AVOIDING WALKS; MONTE-CARLO; WANG-LANDAU; CHAIN; TRANSITIONS; COLLAPSE; PHASEMultiple languages
Physics, Fluids & Plasmas; Physics, MathematicalMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48890

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