Flexible chain molecules in the marginal and concentrated regimes: universal static scaling laws and cross-over predictions

Laso Carbajo, Manuel and Karayiannis, Nikos Ch. (2008). Flexible chain molecules in the marginal and concentrated regimes: universal static scaling laws and cross-over predictions. "Journal of Chemical Physics", v. 128 (n. 17); pp.. ISSN 0021-9606. https://doi.org/10.1063/1.2912189.

Description

Title: Flexible chain molecules in the marginal and concentrated regimes: universal static scaling laws and cross-over predictions
Author/s:
  • Laso Carbajo, Manuel
  • Karayiannis, Nikos Ch.
Item Type: Article
Título de Revista/Publicación: Journal of Chemical Physics
Date: May 2008
ISSN: 0021-9606
Volume: 128
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Química Industrial y del Medio Ambiente
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We present predictions for the static scaling exponents and for the cross-over polymer volumetric fractions in the marginal and concentrated solution regimes. Corrections for finite chain length are made. Predictions are based on an analysis of correlated fluctuations in density and chain length, in a semigrand ensemble in which mers and solvent sites exchange identities. Cross-over volumetric fractions are found to be chain length independent to first order, although reciprocal-N corrections are also estimated. Predicted scaling exponents and cross-over regimes are compared with available data from extensive off-lattice Monte Carlo simulations [Karayiannis and Laso, Phys. Rev. Lett. 100, 050602(2008)]on freely jointed, hard-sphere chains of average lengths from N=12–500 and at packing densities from dilute ones up to the maximally random jammed state.

More information

Item ID: 2609
DC Identifier: http://oa.upm.es/2609/
OAI Identifier: oai:oa.upm.es:2609
DOI: 10.1063/1.2912189
Official URL: http://jcp.aip.org/jcpsa6/v128/i17
Deposited by: Memoria Investigacion
Deposited on: 22 Mar 2010 11:46
Last Modified: 20 Apr 2016 12:15
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