Identifying a critical micelle temperature in simulations of disordered asymmetric diblock copolymer melts

被引：4

作者：

Chawla, Anshul ^{[1
]}

Bates, Frank S. ^{[1
]}

Dorfman, Kevin D. ^{[1
]}

Morse, David C. ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW MATERIALS | 2021年 / 5卷 / 09期

基金：

美国国家科学基金会;

关键词：

FIELD-THEORETIC SIMULATIONS; FRANK-KASPER; MICROPHASE SEPARATION; BLOCK POLYMERS; ORDER; TRANSITIONS; PHASE; STATE; REGIME;

D O I：

10.1103/PhysRevMaterials.5.L092601

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Experiments on asymmetric diblock copolymers at temperatures slightly above the order-disorder transition (ODT) temperature indicate the existence of a dense fluid of micelles. Molecular dynamics simulations are used here to identify a higher critical micelle temperature below which micelles appear. The onset of micellization occurs very near where self-consistent field theory predicts an ODT.

引用

收藏

页数：5

相关论文

共 43 条

[1] Ordering dynamics of compositionally asymmetric styrene isoprene block copolymers [J].

Adams, JL ;

Quiram, DJ ;

Graessley, WW ;

Register, RA ;

Marchand, GR .

MACROMOLECULES, 1996, 29 (08) :2929-2938

[2] Micellar Mimicry of Intermetallic C14 and C15 Laves Phases by Aqueous Lyotropic Self-Assembly [J].

Baez-Cotto, Carlos M. ;

Mahanthappa, Mahesh K. .

ACS NANO, 2018, 12 (04) :3226-3234

[3] Stability of the A15 phase in diblock copolymer melts [J].

Bates, Morgan W. ;

Lequieu, Joshua ;

Barbon, Stephanie M. ;

Lewis, Ronald M., III ;

Delaney, Kris T. ;

Anastasaki, Athina ;

Hawker, Craig J. ;

Fredrickson, Glenn H. ;

Bates, Christopher M. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (27) :13194-13199

[4] Computationally Efficient Field-Theoretic Simulations for Block Copolymer Melts [J].

Beardsley, T. M. ;

Spencer, R. K. W. ;

Matsen, M. W. .

MACROMOLECULES, 2019, 52 (22) :8840-8848

[5] Recent Developments in Fully Fluctuating Field-Theoretic Simulations of Polymer Melts and Solutions [J].

Delaney, Kris T. ;

Fredrickson, Glenn H. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2016, 120 (31) :7615-7634

[6] The order-disorder transition and the disordered micelle regime in sphere-forming block copolymer melts [J].

Dormidontova, EE ;

Lodge, TP .

MACROMOLECULES, 2001, 34 (26) :9143-9155

[7]

Fredrickson G.H., 2006, The Equilibrium Theory of Inhomogeneous Polymers

[8] FLUCTUATION EFFECTS IN THE THEORY OF MICROPHASE SEPARATION IN BLOCK COPOLYMERS [J].

FREDRICKSON, GH ;

HELFAND, E .

JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (01) :697-705

[9] Order-Disorder Transitions and Free Energies in Asymmetric Diblock Copolymers [J].

Ghasimakbari, Taher ;

Morse, David C. .

MACROMOLECULES, 2020, 53 (17) :7399-7409

[10] Correlations in Disordered Melts of Asymmetric Diblock Copolymers [J].

Ghasimakbari, Taher ;

Morse, David C. .

MACROMOLECULES, 2018, 51 (06) :2335-2348

← 1 2 3 4 5 →