Adsorption of Multi-block and Random Copolymer on a Solid Surface: Critical Behavior and Phase Diagram

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dc.creatorBhattacharya, Swati
dc.creatorHsu, Hsiao-Ping
dc.creatorMilchev, Andrey
dc.creatorRostiashvili, Vakhtang G.
dc.creatorVilgis, Thomas A.
dc.date2007-11-23
dc.date.accessioned2026-07-07T09:46:46Z
dc.date.available2026-07-07T09:46:46Z
dc.descriptionThe adsorption of a single multi-block $AB$-copolymer on a solid planar substrate is investigated by means of computer simulations and scaling analysis. It is shown that the problem can be mapped onto an effective homopolymer adsorption problem. In particular we discuss how the critical adsorption energy and the fraction of adsorbed monomers depend on the block length $M$ of sticking monomers $A$, and on the total length $N$ of the polymer chains. Also the adsorption of the random copolymers is considered and found to be well described within the framework of the annealed approximation. For a better test of our theoretical prediction, two different Monte Carlo (MC) simulation methods were employed: a) off-lattice dynamic bead-spring model, based on the standard Metropolis algorithm (MA), and b) coarse-grained lattice model using the Pruned-enriched Rosenbluth method (PERM) which enables tests for very long chains. The findings of both methods are fully consistent and in good agreement with theoretical predictions.
dc.description27 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/0711.3752
dc.identifierhttp://arxiv.org/abs/0711.3752
dc.identifierMacromolecules 41, 2920-2930 (2008)
dc.identifierdoi:10.1021/ma702608j
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/163643
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleAdsorption of Multi-block and Random Copolymer on a Solid Surface: Critical Behavior and Phase Diagram
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