Three-Dimensional Spirals of Conjugated Block Copolymers Driven by Screw Dislocation

Zhu, Yulin1,2; Han, Liang1,2; Fan, Hua3,4; Wang, Meijing1,2; Qi, Rui1,2; Zhao, Yue3,4; He, Feng1,2

2020-04-28

10.1021/acs.macromol.0c00071

MACROMOLECULES   影响因子和分区

0024-9297

1520-5835

Three-dimensional spiral structures are common in nature but rare in nanoscale or mesoscale objects formed by self-assembly, and it is a challenge to obtain uniform and well-structured 3D spiral architecture. Here, we present a simple approach to preparation of 3D spiral micelles with conjugated diblock copolymer poly(p-phenylenevinylene)-block-poly-(ethyleneglycol) by a dissolution-cooling-aging process. By controlling the concentration of the growing solution, the size of micelles can be regulated, and the transformation of assembly morphology from 2D square to 3D spiral can be realized. In view of the low crystallinity of compounds in this system, the 3D spiral structure is driven by relatively weak pi-pi it intermolecular interactions of the conjugated core of the block copolymers. The surface potential of these 3D micelles is almost equally dispersed among the different positions of the spirals from the Kelvin probe force microscopy experiments, and the conductivity of the 3D spiral is inversely proportional to the numbers of spiral layers. Based on their electrical response features, these 3D spiral architectures composed of conjugated block copolymers, especially with well-controlled nanoscale sizes, should be a very promising candidate for the future photoelectronic device and switch applications.

SCI ; EI

英语

NI论文

第一 ; 通讯

National Natural Science Foundation of China[21975115][51773087][21733005] ; Shenzhen Fundamental Research Programs[KQJSCX20180319114442157][JCYJ20180302180238419][JCYJ20170817111214740] ; Shenzhen Nobel Prize Scientists Laboratory Project[C17783101] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Shenzhen SciTech Fund[KYTDPT20181011104007] ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-AC0206CH11357]

Polymer Science

Polymer Science

WOS:000529885700047

AMER CHEMICAL SOC

20201808593374

Nanotechnology ; Crystallinity ; Block copolymers ; Morphology

Nanotechnology:761 ; Colloid Chemistry:801.3 ; Polymeric Materials:815.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystalline Solids:933.1 ; Materials Science:951

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Zhu, Yulin,Han, Liang,Fan, Hua,et al. Three-Dimensional Spirals of Conjugated Block Copolymers Driven by Screw Dislocation[J]. MACROMOLECULES,2020,53(8):3217-3223.

Zhu, Yulin.,Han, Liang.,Fan, Hua.,Wang, Meijing.,Qi, Rui.,...&He, Feng.(2020).Three-Dimensional Spirals of Conjugated Block Copolymers Driven by Screw Dislocation.MACROMOLECULES,53(8),3217-3223.

Zhu, Yulin,et al."Three-Dimensional Spirals of Conjugated Block Copolymers Driven by Screw Dislocation".MACROMOLECULES 53.8(2020):3217-3223.