Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy

Jian Wang; Jian-hui Song; Yu-yuan Lu; Yong-jin Ruan; Li-jia An

doi:10.1007/s10118-017-1915-8

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Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy

Papers | Updated：2021-02-18

- Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy
- Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy
- Chinese Journal of Polymer Science 2017年35卷第7期页码：874-886
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.University of Chinese Academy of Sciences, Beijing 100049, China
  c.School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Author bio：
  
  Yu-yuan Lu (卢宇源), E-mail:yylu@ciac.ac.cn
- Funds：
  
  the National Natural Science Foundation of China(Nos. 21304097);the National Natural Science Foundation of China(21334007);the National Natural Science Foundation of China(21674113);Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s10118-017-1915-8.
- DOI：10.1007/s10118-017-1915-8
  中图分类号：
- 收稿：2016-11-12，
  
  修回：2016-12-9，
  
  录用：2016-12-15，
  
  纸质出版：2017-07-05
- Accepted：
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Jian Wang, Jian-hui Song, Yu-yuan Lu, 等. Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy[J]. Chinese Journal of Polymer Science, 2017,35(7):874-886.

Jian Wang, Jian-hui Song, Yu-yuan Lu, et al. Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy[J]. Chinese Journal of Polymer Science, 2017, 35(7): 874-886.
Jian Wang, Jian-hui Song, Yu-yuan Lu, 等. Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy[J]. Chinese Journal of Polymer Science, 2017,35(7):874-886. DOI： 10.1007/s10118-017-1915-8.

Jian Wang, Jian-hui Song, Yu-yuan Lu, et al. Phase Behavior and Interfacial Properties of Diblock CopolymerHomopolymer Ternary Mixtures: Influence of Volume Fraction of Copolymers and Interaction Energy[J]. Chinese Journal of Polymer Science, 2017, 35(7): 874-886. DOI： 10.1007/s10118-017-1915-8.

摘要

Abstract

We use a Monte Carlo method to study the phase and interfacial behaviors of A-

-B diblocks in a blend of homopolymers

A and B

which are confined between two asymmetric hard and impenetrable walls. Our results show that

when the interaction strength is weak

the block copolymers are uniformly distributed in the ternary mixtures under considered concentrations. Under strong interaction strength

distribution region of the block copolymers changes from a single smooth interface to a curved interface or multi-layer interface in the ternary mixtures. Furthermore

our findings show that with increasing volume fraction of A-

-B diblock copolymer (

)

copolymer profiles broaden while

≥ 0.4

a lamellar phase is formed and by further increasing

more thinner layers are observed. Moreover

the results show that

with the increase of

the phase interface first gradually transforms from plane to a curved surface rather than micelle or lamellar phase while with the increase of the interaction between A and B segments (

)

the copolymer chains not only get stretched in the direction perpendicular to the interface

but also are oriented. The simulations also reveal that the difference between symmetric and asymmetric copolymers is negligible in statistics if the lengths of two blocks are comparable.

关键词

Keywords

references

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