Block Copolymers in High-Frequency Electric Field: Mean-Field Approximation

被引：7

作者：

Erukhimovich, I. Ya ^{[1
,3
]}

Kriksin, Yu A. ^{[2
,3
]}

Kudryavtsev, Y., V ^{[3
]}

机构：

[1] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

[2] Russian Acad Sci, Keldysh Inst Appl Math, Moscow 125047, Russia

[3] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

来源：

POLYMER SCIENCE SERIES A | 2022年 / 64卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

DIBLOCK COPOLYMER; THIN-FILMS; MICROPHASE SEPARATION; MESOSCOPIC DYNAMICS; PHASE-TRANSITIONS; ALIGNMENT; MELTS; POLYMERS; PARALLEL; BEHAVIOR;

D O I：

10.1134/S0965545X22020079

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The problem of self-assembly in a block copolymer melt placed in a high-frequency AC field is addressed. It is assumed that the melt is a dielectric medium that transforms into a new ordered state under exposure to the external field. The mean-field approach is used as a theoretical description method. It is shown that in the zero approximation the impact of the AC electric field on the melt is equivalent to the impact of the DC electric field with the squared strength equal to the constant component of the AC electric field strength squared. In addition, in the first approximation relative to the electric field oscillation period melt elements perform small oscillations about a new position of equilibrium with the double electric field frequency.

引用

页码：121 / 127

页数：7

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