Phase Diagram of Rod-Coil Diblock Copolymer Melts

Jiuzhou Tang; Ying Jiang; Xinghua Zhang; Dadong Yan; Jeff Z.Y. Chen

doi:10.1021/acs.macromol.5b02235

Phase Diagram of Rod-Coil Diblock Copolymer Melts

Jiuzhou Tang
, Ying Jiang
, Xinghua Zhang
, Dadong Yan^*
, Jeff Z.Y. Chen

^*此作品的通讯作者

化学学院

CAS - Institute of Chemistry
Beijing Jiaotong University
Beijing Normal University
University of Waterloo

科研成果: 期刊稿件 › 文章 › 同行评审

47 引用（Scopus）

摘要

A unified phase diagram is presented for rod-coil diblock copolymer melts in the isotropic phase regime as a function of the asymmetric parameter. The study is based on free energy calculation, which incorporates three-dimensional spatial variations of the volume fraction with angular dependence. The wormlike-chain model is used in a self-consistent field treatment. Body-centered cubic, A15, hexagonal, gyroid, and lamellar structures where the rod segments are packed inside the convex rod-coil interface are found stable. As the conformational asymmetric parameter increases, the A15 phase region expands and the gyroid phase region reduces. The stability of the structures is analyzed by concepts such as packing frustration, spinodal limit, and interfacial curvature.

源语言	英语
页（从-至）	9060-9070
页数	11
期刊	Macromolecules
卷	48
期	24
DOI	https://doi.org/10.1021/acs.macromol.5b02235
出版状态	已出版 - 22 12月 2015

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title = "Phase Diagram of Rod-Coil Diblock Copolymer Melts",

abstract = "A unified phase diagram is presented for rod-coil diblock copolymer melts in the isotropic phase regime as a function of the asymmetric parameter. The study is based on free energy calculation, which incorporates three-dimensional spatial variations of the volume fraction with angular dependence. The wormlike-chain model is used in a self-consistent field treatment. Body-centered cubic, A15, hexagonal, gyroid, and lamellar structures where the rod segments are packed inside the convex rod-coil interface are found stable. As the conformational asymmetric parameter increases, the A15 phase region expands and the gyroid phase region reduces. The stability of the structures is analyzed by concepts such as packing frustration, spinodal limit, and interfacial curvature.",

author = "Jiuzhou Tang and Ying Jiang and Xinghua Zhang and Dadong Yan and Chen, \{Jeff Z.Y.\}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = dec,

day = "22",

doi = "10.1021/acs.macromol.5b02235",

language = "英语",

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TY - JOUR

T1 - Phase Diagram of Rod-Coil Diblock Copolymer Melts

AU - Tang, Jiuzhou

AU - Jiang, Ying

AU - Zhang, Xinghua

AU - Yan, Dadong

AU - Chen, Jeff Z.Y.

PY - 2015/12/22

Y1 - 2015/12/22

N2 - A unified phase diagram is presented for rod-coil diblock copolymer melts in the isotropic phase regime as a function of the asymmetric parameter. The study is based on free energy calculation, which incorporates three-dimensional spatial variations of the volume fraction with angular dependence. The wormlike-chain model is used in a self-consistent field treatment. Body-centered cubic, A15, hexagonal, gyroid, and lamellar structures where the rod segments are packed inside the convex rod-coil interface are found stable. As the conformational asymmetric parameter increases, the A15 phase region expands and the gyroid phase region reduces. The stability of the structures is analyzed by concepts such as packing frustration, spinodal limit, and interfacial curvature.

AB - A unified phase diagram is presented for rod-coil diblock copolymer melts in the isotropic phase regime as a function of the asymmetric parameter. The study is based on free energy calculation, which incorporates three-dimensional spatial variations of the volume fraction with angular dependence. The wormlike-chain model is used in a self-consistent field treatment. Body-centered cubic, A15, hexagonal, gyroid, and lamellar structures where the rod segments are packed inside the convex rod-coil interface are found stable. As the conformational asymmetric parameter increases, the A15 phase region expands and the gyroid phase region reduces. The stability of the structures is analyzed by concepts such as packing frustration, spinodal limit, and interfacial curvature.

UR - https://www.scopus.com/pages/publications/84951804030

U2 - 10.1021/acs.macromol.5b02235

DO - 10.1021/acs.macromol.5b02235

M3 - 文章

AN - SCOPUS:84951804030

SN - 0024-9297

VL - 48

SP - 9060

EP - 9070

JO - Macromolecules

JF - Macromolecules

IS - 24

ER -

Phase Diagram of Rod-Coil Diblock Copolymer Melts

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