Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study

Yan-Yan Wang; Qing-Liang Song; Lin-Li He

doi:10.1007/s10118-018-2122-y

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Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study

ARTICLE | Updated：2021-02-18

- Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study
- Chinese Journal of Polymer Science Vol. 36, Issue 10, Pages: 1200-1206(2018)
- Affiliations：
  
  Department of Physics, Wenzhou University, Wenzhou 325035, China
- Author bio：
  
  linlihe@wzu.edu.cn
- Funds：
- DOI：10.1007/s10118-018-2122-y
  CLC：
- Received：28 December 2017，
  
  Revised：2018-2-5，
  
  Accepted：05 February 2018，
  
  Online First：30 March 2018，
  
  Published：2018-10
- Accepted：
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Citation: Wang, Y. Y.; Song, Q. L.; He. L. L. Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study. Chinese J. Polym. Sci. 2018, 36(10), 1200–1206.

Yan-Yan Wang, Qing-Liang Song, Lin-Li He. Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study[J]. Chinese Journal of Polymer Science, 2018, 36(10): 1200-1206.
Citation: Wang, Y. Y.; Song, Q. L.; He. L. L. Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study. Chinese J. Polym. Sci. 2018, 36(10), 1200–1206. DOI： 10.1007/s10118-018-2122-y.

Yan-Yan Wang, Qing-Liang Song, Lin-Li He. Liquid-crystal Assembly of Semiflexible-coil/Homopolymer Blends: a Dissipative Particle Dynamics Study[J]. Chinese Journal of Polymer Science, 2018, 36(10): 1200-1206. DOI： 10.1007/s10118-018-2122-y.

摘要

Abstract

The liquid-crystal assembly of semiflexible-coil diblock copolymers with coil or semiflexible homopolymers is studied by dissipative particle dynamics simulation. Phase diagrams of the blends and orientation ordering parameters among semiflexible blocks are constructed as a function of chain stiffness and homopolymer volume fraction. For semiflexible-coil/coil blends with varying stiffness of semiflexible blocks

we display the rich phase behaviors of the system transited from coil-coil/coil to rod-coil/coil blends. The disorder-lamellae or lamellae-liquid crystalline transition and " dry brush” phenomenon induced by coil homopolymers are observed. For semiflexible-coil/semiflexible blends

adding semiflexible homopolymers also leads to a disorder-order transition and even a transition between monolayer and bilayer smectic-A phase. The results demonstrate that blending homopolymers into semiflexible copolymers can induce liquid-crystal assembly and even improve the orientation ordering of semiflexible blocks effectively.

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references

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