Diffusion of chains in a periodic potential

We studied the diffusion of 1D rigid chains in a square wave potential of period T. We considered chains of type A (composed of N particles A) and chains of type A-B (composed of N/2 particles A and N/2 particles B). The square wave potential represents domains, a lamellar structure observed for blo...

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Published in:Journal of Statistical Mechanics: Theory and Experiment
Main Authors: Terranova, Guillermo Roberto, Martin, Hector Omar, Aldao, Celso Manuel
Format: Article in Journal/Newspaper
Language:English
Published: IOP Publishing
Subjects:
Online Access:http://hdl.handle.net/11336/63329
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spelling ftconicet:oai:ri.conicet.gov.ar:11336/63329 2023-10-09T21:56:14+02:00 Diffusion of chains in a periodic potential Terranova, Guillermo Roberto Martin, Hector Omar Aldao, Celso Manuel application/pdf http://hdl.handle.net/11336/63329 eng eng IOP Publishing info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1742-5468/aa82be/meta info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/aa82be http://hdl.handle.net/11336/63329 Terranova, Guillermo Roberto; Martin, Hector Omar; Aldao, Celso Manuel; Diffusion of chains in a periodic potential; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2017; 9; 9-2017; 1-13 1742-5468 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ DIFUSIÓN COPOLIMEROS https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1088/1742-5468/aa82be 2023-09-24T18:32:40Z We studied the diffusion of 1D rigid chains in a square wave potential of period T. We considered chains of type A (composed of N particles A) and chains of type A-B (composed of N/2 particles A and N/2 particles B). The square wave potential represents domains, a lamellar structure observed for block copolymers, in which the repulsive δ energy between each A particle (B particle) of the chain and B particles (A particles) of the medium where the chains diffuse. From Monte Carlo simulations and analytical results it is found that the normalized diffusivity D, for N ≪ T, presents a universal behavior as a function of X = Nδ for chains of type A and X = (Nδ - lnT2) for chains of type A-B, with and exponential decay for large values of X. For fixed values of δ and T, D is a periodic function of N with period T and 2T for chains of type A and type A-B, respectively. Fil: Terranova, Guillermo Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina Fil: Martin, Hector Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Article in Journal/Newspaper Terranova CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Hector ENVELOPE(-63.376,-63.376,-64.579,-64.579) Journal of Statistical Mechanics: Theory and Experiment 2017 9 093204
institution Open Polar
collection CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
op_collection_id ftconicet
language English
topic DIFUSIÓN
COPOLIMEROS
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
spellingShingle DIFUSIÓN
COPOLIMEROS
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Terranova, Guillermo Roberto
Martin, Hector Omar
Aldao, Celso Manuel
Diffusion of chains in a periodic potential
topic_facet DIFUSIÓN
COPOLIMEROS
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description We studied the diffusion of 1D rigid chains in a square wave potential of period T. We considered chains of type A (composed of N particles A) and chains of type A-B (composed of N/2 particles A and N/2 particles B). The square wave potential represents domains, a lamellar structure observed for block copolymers, in which the repulsive δ energy between each A particle (B particle) of the chain and B particles (A particles) of the medium where the chains diffuse. From Monte Carlo simulations and analytical results it is found that the normalized diffusivity D, for N ≪ T, presents a universal behavior as a function of X = Nδ for chains of type A and X = (Nδ - lnT2) for chains of type A-B, with and exponential decay for large values of X. For fixed values of δ and T, D is a periodic function of N with period T and 2T for chains of type A and type A-B, respectively. Fil: Terranova, Guillermo Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina Fil: Martin, Hector Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
format Article in Journal/Newspaper
author Terranova, Guillermo Roberto
Martin, Hector Omar
Aldao, Celso Manuel
author_facet Terranova, Guillermo Roberto
Martin, Hector Omar
Aldao, Celso Manuel
author_sort Terranova, Guillermo Roberto
title Diffusion of chains in a periodic potential
title_short Diffusion of chains in a periodic potential
title_full Diffusion of chains in a periodic potential
title_fullStr Diffusion of chains in a periodic potential
title_full_unstemmed Diffusion of chains in a periodic potential
title_sort diffusion of chains in a periodic potential
publisher IOP Publishing
url http://hdl.handle.net/11336/63329
long_lat ENVELOPE(-63.376,-63.376,-64.579,-64.579)
geographic Argentina
Hector
geographic_facet Argentina
Hector
genre Terranova
genre_facet Terranova
op_relation info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1742-5468/aa82be/meta
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/aa82be
http://hdl.handle.net/11336/63329
Terranova, Guillermo Roberto; Martin, Hector Omar; Aldao, Celso Manuel; Diffusion of chains in a periodic potential; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2017; 9; 9-2017; 1-13
1742-5468
CONICET Digital
CONICET
op_rights info:eu-repo/semantics/restrictedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
op_doi https://doi.org/10.1088/1742-5468/aa82be
container_title Journal of Statistical Mechanics: Theory and Experiment
container_volume 2017
container_issue 9
container_start_page 093204
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