Spatial distribution and nematic ordering of anisotropic nanoparticles in lamellae and hexagonal phases of block copolymers

Mikhail A. Osipov, Maxim V. Gorkunov

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Abstract.: Orientational and translational ordering of anisotropic nanoparticles in the lamellae and hexagonal phases of diblock copolymers have been considered theoretically in the case of strong segregation taking into account the anisotropic interaction between the nanoparticles and the monomers in different blocks. It has been shown that anisotropic nanoparticles are orientationally ordered in the boundary region between the blocks and the nematic order parameter possesses opposite signs in different blocks: the nanoparticles align parallel to the boundary in one block and perpendicular to it in the other. In the hexagonal phase, a weak biaxial ordering of nanoparticles is also induced in the boundary region. Explicit analytical results have been obtained for the distribution of nanoparticles in the lamellae phase. The results are compared with the existing experimental data. 

LanguageEnglish
Article number126
Number of pages9
JournalEuropean Physical Journal E
Volume39
Issue number12
Early online date21 Dec 2016
DOIs
Publication statusPublished - 31 Dec 2016

Fingerprint

lamella
block copolymers
Nanoparticles
Spatial distribution
Block copolymers
spatial distribution
nanoparticles
copolymers
monomers
Monomers
interactions

Keywords

  • soft matter
  • liquid crystals
  • anisotropic nanoparticles
  • diblock copolymers
  • hexagonal phase
  • boundary region
  • lamellae phase

Cite this

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abstract = "Abstract.: Orientational and translational ordering of anisotropic nanoparticles in the lamellae and hexagonal phases of diblock copolymers have been considered theoretically in the case of strong segregation taking into account the anisotropic interaction between the nanoparticles and the monomers in different blocks. It has been shown that anisotropic nanoparticles are orientationally ordered in the boundary region between the blocks and the nematic order parameter possesses opposite signs in different blocks: the nanoparticles align parallel to the boundary in one block and perpendicular to it in the other. In the hexagonal phase, a weak biaxial ordering of nanoparticles is also induced in the boundary region. Explicit analytical results have been obtained for the distribution of nanoparticles in the lamellae phase. The results are compared with the existing experimental data. ",
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Spatial distribution and nematic ordering of anisotropic nanoparticles in lamellae and hexagonal phases of block copolymers. / Osipov, Mikhail A.; Gorkunov, Maxim V.

In: European Physical Journal E , Vol. 39, No. 12, 126, 31.12.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Spatial distribution and nematic ordering of anisotropic nanoparticles in lamellae and hexagonal phases of block copolymers

AU - Osipov, Mikhail A.

AU - Gorkunov, Maxim V.

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PY - 2016/12/31

Y1 - 2016/12/31

N2 - Abstract.: Orientational and translational ordering of anisotropic nanoparticles in the lamellae and hexagonal phases of diblock copolymers have been considered theoretically in the case of strong segregation taking into account the anisotropic interaction between the nanoparticles and the monomers in different blocks. It has been shown that anisotropic nanoparticles are orientationally ordered in the boundary region between the blocks and the nematic order parameter possesses opposite signs in different blocks: the nanoparticles align parallel to the boundary in one block and perpendicular to it in the other. In the hexagonal phase, a weak biaxial ordering of nanoparticles is also induced in the boundary region. Explicit analytical results have been obtained for the distribution of nanoparticles in the lamellae phase. The results are compared with the existing experimental data. 

AB - Abstract.: Orientational and translational ordering of anisotropic nanoparticles in the lamellae and hexagonal phases of diblock copolymers have been considered theoretically in the case of strong segregation taking into account the anisotropic interaction between the nanoparticles and the monomers in different blocks. It has been shown that anisotropic nanoparticles are orientationally ordered in the boundary region between the blocks and the nematic order parameter possesses opposite signs in different blocks: the nanoparticles align parallel to the boundary in one block and perpendicular to it in the other. In the hexagonal phase, a weak biaxial ordering of nanoparticles is also induced in the boundary region. Explicit analytical results have been obtained for the distribution of nanoparticles in the lamellae phase. The results are compared with the existing experimental data. 

KW - soft matter

KW - liquid crystals

KW - anisotropic nanoparticles

KW - diblock copolymers

KW - hexagonal phase

KW - boundary region

KW - lamellae phase

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