Confined Self-Assemblies of Chiral Block Copolymers in Thin Films

被引：6

作者：

Yuan, Jun ^{[1
,2
]}

Liu, Xiang ^{[1
,2
]}

Wang, Yingying ^{[1
,2
]}

Zeng, Guangjian ^{[1
,2
]}

Li, Gang ^{[3
]}

Dong, Xue-Hui ^{[1
,2
]}

Wen, Tao ^{[1
,2
]}

机构：

[1] South China Univ Technol, South China Adv Inst Soft Matter Sci & Technol, Sch Mol Sci & Engn, Guangzhou 510640, Peoples R China

[2] South China Univ Technol, Guangdong Prov Key Lab Funct & Intelligent Hybrid, Guangzhou 510640, Peoples R China

[3] Yuzhang Normal Univ, Dept Ecol & Environm, Nanchang 330103, Jiangxi, Peoples R China

来源：

ACS MACRO LETTERS | 2021年 / 10卷 / 10期

基金：

中国国家自然科学基金;

关键词：

DIBLOCK COPOLYMERS; PHASE; ORIENTATION; MICROSTRUCTURES; MELTS;

D O I：

10.1021/acsmacrolett.1c00458

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Self-assembly of chiral block copolymers (BCPs*) can give rise to ordered chiral nanostructures, that is, a helical phase (H* phase), via chirality transfer from the molecular level to mesoscale. In the present work, we reported the self-assembly of BCPs* under one-dimensional spatial confinement. The morphological dependence of self-assembled BCPs* on the molecular weights and the film thickness was investigated. As chiral nanostructures, the H* phase can be formed in bulk, nonchiral nanostructures that were observed in the thin films. Also, the topology effect of self-assembly of BCPs* was examined. The self-assembly of BCPs* with a star-shaped topology exhibited a distinct morphology compared with that of linear BCPs*. The present work provides new insight into the chirality transfer of macromolecules under spatial confinement.

引用

页码：1300 / 1305

页数：6

共 38 条

[1] Self-assembly of block copolymer thin films [J].

Albert, Julie N. L. ;

Epps, Thomas H., III .

MATERIALS TODAY, 2010, 13 (06) :24-33

[2] BLOCK COPOLYMER THERMODYNAMICS - THEORY AND EXPERIMENT [J].

BATES, FS ;

FREDRICKSON, GH .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 (01) :525-557

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

Bates, FS ;

Fredrickson, GH .

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

[4] Single Helix to Double Gyroid in Chiral Block Copolymers [J].

Chen, Chun-Ku ;

Hsueh, Han-Yu ;

Chiang, Yeo-Wan ;

Ho, Rong-Ming ;

Akasaka, Satoshi ;

Hasegawa, Hirokazu .

MACROMOLECULES, 2010, 43 (20) :8637-8644

[5] Self-assembled smectic phases in rod-coil block copolymers [J].

Chen, JT ;

Thomas, EL ;

Ober, CK ;

Mao, GP .

SCIENCE, 1996, 273 (5273) :343-346

[6] Microstructures of a Cylinder-Forming Diblock Copolymer under Spherical Confinement [J].

Chen, Peng ;

Liang, Haojun ;

Shi, An-Chang .

MACROMOLECULES, 2008, 41 (22) :8938-8943

[7] Springlike nanohelical structures in chiral block copolymers [J].

Chiang, YW ;

Ho, RM ;

Ko, BT ;

Lin, CC .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (48) :7969-7972

[8] Chiral transfer in coordination complexes: towards molecular materials [J].

Crassous, Jeanne .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (03) :830-845

[9] Moebius strips of chiral block copolymers [J].

Geng, Zhen ;

Xiong, Bijin ;

Wang, Liquan ;

Wang, Ke ;

Ren, Min ;

Zhang, Lianbin ;

Zhu, Jintao ;

Yang, Zhenzhong .

NATURE COMMUNICATIONS, 2019, 10 (1)

[10] Chirality Transfer in Block Copolymer Melts: Emerging Concepts [J].

Grason, Gregory M. .

ACS MACRO LETTERS, 2015, 4 (05) :526-532

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