Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration

We carry out extensive molecular dynamics simulations of thin films of bead-spring models of binary mixtures composed of cyclic and linear polymer chains. We study the equilibrium behavior of the polymer chains for two very different chain lengths, which resemble short (10-mers) and long (100-mers)...

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Main Authors: Francis M. Gaitho, Mesfin Tsige, Genene T. Mola, Giuseppe Pellicane
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Polymers
Subjects:
Online Access:http://www.mdpi.com/2073-4360/10/3/324
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spelling doaj-c3ec885d329c4a1abea8937cdeb880462020-11-24T23:54:12ZengMDPI AGPolymers2073-43602018-03-0110332410.3390/polym10030324polym10030324Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent ConcentrationFrancis M. Gaitho0Mesfin Tsige1Genene T. Mola2Giuseppe Pellicane3School of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, Scottsville 3209, South AfricaDepartment of Polymer Science, University of Akron, Akron, OH 44325, USASchool of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, Scottsville 3209, South AfricaSchool of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, Scottsville 3209, South AfricaWe carry out extensive molecular dynamics simulations of thin films of bead-spring models of binary mixtures composed of cyclic and linear polymer chains. We study the equilibrium behavior of the polymer chains for two very different chain lengths, which resemble short (10-mers) and long (100-mers) chains, at different concentrations of the binary mixture. We clearly show how the concentration variable affects the enrichment of either of the two polymer species at the interface, and also how the chain length influences this process.http://www.mdpi.com/2073-4360/10/3/324polymer meltconcentrationsurface behaviorinterface
collection DOAJ
language English
format Article
sources DOAJ
author Francis M. Gaitho
Mesfin Tsige
Genene T. Mola
Giuseppe Pellicane
spellingShingle Francis M. Gaitho
Mesfin Tsige
Genene T. Mola
Giuseppe Pellicane
Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
Polymers
polymer melt
concentration
surface behavior
interface
author_facet Francis M. Gaitho
Mesfin Tsige
Genene T. Mola
Giuseppe Pellicane
author_sort Francis M. Gaitho
title Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
title_short Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
title_full Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
title_fullStr Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
title_full_unstemmed Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration
title_sort surface segregation of cyclic chains in binary melts of thin polymer films: the influence of constituent concentration
publisher MDPI AG
series Polymers
issn 2073-4360
publishDate 2018-03-01
description We carry out extensive molecular dynamics simulations of thin films of bead-spring models of binary mixtures composed of cyclic and linear polymer chains. We study the equilibrium behavior of the polymer chains for two very different chain lengths, which resemble short (10-mers) and long (100-mers) chains, at different concentrations of the binary mixture. We clearly show how the concentration variable affects the enrichment of either of the two polymer species at the interface, and also how the chain length influences this process.
topic polymer melt
concentration
surface behavior
interface
url http://www.mdpi.com/2073-4360/10/3/324
work_keys_str_mv AT francismgaitho surfacesegregationofcyclicchainsinbinarymeltsofthinpolymerfilmstheinfluenceofconstituentconcentration
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AT genenetmola surfacesegregationofcyclicchainsinbinarymeltsofthinpolymerfilmstheinfluenceofconstituentconcentration
AT giuseppepellicane surfacesegregationofcyclicchainsinbinarymeltsofthinpolymerfilmstheinfluenceofconstituentconcentration
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