Molecular structure and phase behaviour of hairy-rod polymers

David Cheung, Alessandro Troisi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Using dissipative particle dynamics simulations the relationship between molecular architecture and phase behaviour in model hairy-rod polymers is studied. In agreement with experimental and theoretical studies the phase behaviour is controlled by changes to the molecular structure, particularly the sidechain length and density, and the molecular interactions. For dense sidechains a lamellar structure is found, which becomes an inverted cylindrical phase when the sidechain density is lowered. The ordered phases become more stable on increasing sidechain length and on increasing the repulsion strength between the backbone and sidechains. In the absence of torsional potentials the structures are double-walled, i.e. layers are two polymer backbones thick, while single-walled structures are observed for polymers with torsional potentials.
Original languageEnglish
Pages (from-to)2105-2112
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume11
Issue number12
DOIs
Publication statusPublished - 12 Mar 2009

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Phase behavior
Molecular structure
Polymers
molecular structure
rods
polymers
Lamellar structures
Molecular interactions
molecular interactions
Computer simulation
simulation

Keywords

  • molecular structure
  • phase behaviour
  • hairy-rod polymers

Cite this

Cheung, David ; Troisi, Alessandro. / Molecular structure and phase behaviour of hairy-rod polymers. In: Physical Chemistry Chemical Physics. 2009 ; Vol. 11, No. 12. pp. 2105-2112.
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Molecular structure and phase behaviour of hairy-rod polymers. / Cheung, David; Troisi, Alessandro.

In: Physical Chemistry Chemical Physics, Vol. 11, No. 12, 12.03.2009, p. 2105-2112.

Research output: Contribution to journalArticle

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AU - Troisi, Alessandro

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KW - phase behaviour

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