Flow Behavior of Chain and Star Polymers and Their Mixtures

Publication type:
Journal article
Metadata:
Autoren
  • Deepika Srivastva
  • Arash Nikoubashman
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000436560200036&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.3390/polym10060599
Externe Identifier
  • Clarivate Analytics Document Solution ID: GK9JA
  • PubMed Identifier: 30966633
ISSN
2073-4360
Ausgabe der Veröffentlichung
6
Zeitschrift
POLYMERS
Schlüsselwörter
  • microfluidics
  • Poiseuille flow
  • simulations
  • polymers
  • stars
  • chains
  • separation
Artikelnummer
ARTN 599
Datum der Veröffentlichung
2018
Status
Published
Titel
Flow Behavior of Chain and Star Polymers and Their Mixtures
Sub types
  • Article
Ausgabe der Zeitschrift
10

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • Deepika Srivastva
  • Arash Nikoubashman
DOI
10.3390/polym10060599
eISSN
2073-4360
Ausgabe der Veröffentlichung
6
Zeitschrift
Polymers
Sprache
en
Online publication date
2018
Paginierung
599 - 599
Status
Published online
Herausgeber
MDPI AG
Herausgeber URL
http://dx.doi.org/10.3390/polym10060599
Datum der Datenerfassung
2018
Titel
Flow Behavior of Chain and Star Polymers and Their Mixtures
Ausgabe der Zeitschrift
10

Data source: Crossref

Abstract
Star-shaped polymers show a continuous change of properties from flexible linear chains to soft colloids, as the number of arms is increased. To investigate the effect of macromolecular architecture on the flow properties, we employ computer simulations of single chain and star polymers as well as of their mixtures under Poiseuille flow. Hydrodynamic interactions are incorporated through the multi-particle collision dynamics (MPCD) technique, while a bead-spring model is used to describe the polymers. For the ultradilute systems at rest, the polymers are distributed uniformly in the slit channel, with a weak dependence on their number of arms. Once flow is applied, however, we find that the stars migrate much more strongly towards the channel center as the number of arms is increased. In the star-chain mixtures, we find a flow-induced separation between stars and chains, with the stars located in the channel center and the chains closer to the walls. In order to identify the origin of this flow-induced partitioning, we conduct additional simulations without hydrodynamic interactions, and find that the observed cross-stream migration originates from a combination of wall-induced hydrodynamic lift forces and viscoelastic effects. The results from our study give valuable insights for designing microfluidic devices for separating polymers based on their architecture.
Addresses
  • Institute of Physics, Johannes Gutenberg University Mainz, Staudingerweg 7, 55128 Mainz, Germany. ddeepika@uni-mainz.de.
Autoren
  • Deepika Srivastva
  • Arash Nikoubashman
DOI
10.3390/polym10060599
eISSN
2073-4360
Externe Identifier
  • PubMed Identifier: 30966633
  • PubMed Central ID: PMC6403976
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: NI 1487/2-1
  • Deutsche Forschungsgemeinschaft: SFB TRR146
Open access
true
ISSN
2073-4360
Ausgabe der Veröffentlichung
6
Zeitschrift
Polymers
Sprache
eng
Medium
Electronic
Online publication date
2018
Open access status
Open Access
Paginierung
E599
Datum der Veröffentlichung
2018
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2019
Titel
Flow Behavior of Chain and Star Polymers and Their Mixtures.
Sub types
  • research-article
  • Journal Article
Ausgabe der Zeitschrift
10

Files

https://www.mdpi.com/2073-4360/10/6/599/pdf?version=1527592047 https://europepmc.org/articles/PMC6403976?pdf=render

Data source: Europe PubMed Central

Abstract
Star-shaped polymers show a continuous change of properties from flexible linear chains to soft colloids, as the number of arms is increased. To investigate the effect of macromolecular architecture on the flow properties, we employ computer simulations of single chain and star polymers as well as of their mixtures under Poiseuille flow. Hydrodynamic interactions are incorporated through the multi-particle collision dynamics (MPCD) technique, while a bead-spring model is used to describe the polymers. For the ultradilute systems at rest, the polymers are distributed uniformly in the slit channel, with a weak dependence on their number of arms. Once flow is applied, however, we find that the stars migrate much more strongly towards the channel center as the number of arms is increased. In the star-chain mixtures, we find a flow-induced separation between stars and chains, with the stars located in the channel center and the chains closer to the walls. In order to identify the origin of this flow-induced partitioning, we conduct additional simulations without hydrodynamic interactions, and find that the observed cross-stream migration originates from a combination of wall-induced hydrodynamic lift forces and viscoelastic effects. The results from our study give valuable insights for designing microfluidic devices for separating polymers based on their architecture.
Date of acceptance
2018
Autoren
  • Deepika Srivastva
  • Arash Nikoubashman
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/30966633
DOI
10.3390/polym10060599
eISSN
2073-4360
Externe Identifier
  • PubMed Central ID: PMC6403976
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: NI 1487/2-1
  • Deutsche Forschungsgemeinschaft: SFB TRR146
Ausgabe der Veröffentlichung
6
Zeitschrift
Polymers (Basel)
Schlüsselwörter
  • Poiseuille flow
  • chains
  • microfluidics
  • polymers
  • separation
  • simulations
  • stars
Sprache
eng
Country
Switzerland
PII
polym10060599
Datum der Veröffentlichung
2018
Status
Published online
Titel
Flow Behavior of Chain and Star Polymers and Their Mixtures.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
10

Data source: PubMed

Author's licence
CC-BY
Autoren
  • Deepika Srivastva
  • Arash Nikoubashman
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
DOI
10.3390/polym10060599
Funding acknowledgements
  • DFG, Open Access-Publizieren Universität Mainz / Universitätsmedizin
File(s) embargoed
false
Open access
true
ISSN
2073-4360
Ausgabe der Veröffentlichung
6
Zeitschrift
Polymers
Schlüsselwörter
  • 530 Physik
  • 530 Physics
Sprache
eng
Open access status
Open Access
Paginierung
Art. 599
Datum der Veröffentlichung
2018
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/654
Herausgeber
MDPI
Herausgeber URL
http://dx.doi.org/10.3390/polym10060599
Datum der Datenerfassung
2018
Datum, an dem der Datensatz öffentlich gemacht wurde
2018
Zugang
Public
Titel
Flow behavior of chain and star polymers and their mixtures
Ausgabe der Zeitschrift
10

Files

58246.pdf

Data source: OPENSCIENCE.UB

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