Apparent glassy dynamics of an adsorbed polymer chain in the bond-fluctuation model

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39171

Title:	Apparent glassy dynamics of an adsorbed polymer chain in the bond-fluctuation model
Authors:	Lai,PY
Contributors:	物理研究所
Keywords:	LATTICE MONTE-CARLO;CRITICAL EXPONENTS;SOLID INTERFACES;FIELD-THEORY;ADSORPTION;MELTS;DIMENSIONS;SURFACE;CONFORMATIONS;SIMULATIONS
Date:	1996
Issue Date:	2010-07-08 14:07:10 (UTC+8)
Publisher:	中央大學
Abstract:	The dynamics of a single homopolymer chain strongly adsorbed on a flat surface is investigated by Monte Carlo simulation using the bond-fluctuation model. Previously observed anomalous glassy dynamics at low temperatures [Phys. Rev. E 49, 5420 (1994)] is revisited in detail. We also study the dynamics of a polymer chain confined in a narrow slit of width of a monomer and a modified bond-fluctuation model in three dimensions to include more relevant bond vectors. We show that the previously observed glassy dynamics is due to an artifact of the bond-fluctuation model in three dimensions in that it does not cross-over to the two dimensional bond-fluctuation model with the correct Rouse dynamics. With the proper inclusion of the extra bond vectors P(2,2,0) and P(3,2,0), no glassy behavior appears for the strongly adsorbed chain.
Relation:	MACROMOLECULAR THEORY AND SIMULATIONS
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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