Discovering new ordered phases of block copolymers

被引：214

作者：

Bohbot-Raviv, Y ^{[1
]}

Wang, ZG ^{[1
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.85.3428

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a new and general method for discovering novel ordered phases of block copolymer melts. The method involves minimizing a free energy functional in an arbitrary unit cell with respect to the composition profile and the dimensions of the unit cell, without any prior assumption of the microphase symmetry. Varying the initial conditions allows to search for different stable and metastable structures. Application of this method to ABC star and linear triblock copolymers using an approximate free energy reveals new morphologies not yet observed in experiment.

引用

页码：3428 / 3431

页数：4

共 27 条

[1] Block copolymers - Designer soft materials [J].

Bates, FS ;

Fredrickson, GH .

PHYSICS TODAY, 1999, 52 (02) :32-38

[2]

BINDER K, 1994, ADV POLYM SCI, V112

[3] Structural characterization of the "knitting pattern" in polystyrene-block-poly(ethylene-co-butylene)-block-poly(methylmethacrylate) triblock copolymers [J].

Breiner, U ;

Krappe, U ;

Thomas, EL ;

Stadler, R .

MACROMOLECULES, 1998, 31 (01) :135-141

[4] Morphology of thin block copolymer films on chemically patterned substrates [J].

Chen, H ;

Chakrabarti, A .

JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (16) :6897-6905

[5] The diagonal bond method: A new lattice polymer model for simulation study of block copolymers [J].

Dotera, T ;

Hatano, A .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (18) :8413-8427

[6] Combinatorial screening of complex block copolymer assembly with self-consistent field theory [J].

Drolet, F ;

Fredrickson, GH .

PHYSICAL REVIEW LETTERS, 1999, 83 (21) :4317-4320

[7] ANNEALING MARKOV-CHAIN MONTE-CARLO WITH APPLICATIONS TO ANCESTRAL INFERENCE [J].

GEYER, CJ ;

THOMPSON, EA .

JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1995, 90 (431) :909-920

[8] Core-shell cylinders and core-shell gyroid morphologies via blending of lamellar ABC triblock and BC diblock copolymers [J].

Goldacker, T ;

Abetz, V .

MACROMOLECULES, 1999, 32 (15) :5165-5167

[9] MORPHOLOGY AND MISCIBILITY OF MIKTOARM STYRENE DIENE COPOLYMERS AND TERPOLYMERS [J].

HADJICHRISTIDIS, N ;

IATROU, H ;

BEHAL, SK ;

CHLUDZINSKI, JJ ;

DISKO, MM ;

GARNER, RT ;

LIANG, KS ;

LOHSE, DJ ;

MILNER, ST .

MACROMOLECULES, 1993, 26 (21) :5812-5815

[10] OPTIMIZATION BY SIMULATED ANNEALING [J].

KIRKPATRICK, S ;

GELATT, CD ;

VECCHI, MP .

SCIENCE, 1983, 220 (4598) :671-680

← 1 2 3 →