Micropore extrusion-induced alignment transition from perpendicular to parallel of cylindrical domains in block copolymers

Micropore extrusion-induced alignment transition from perpendicular to parallel of cylindrical domains in block copolymers

The orientation transition from perpendicular to parallel alignment of PEO cylindrical domains of PEO- b -PMA(Az) films has been demonstrated by extruding the block copolymer (BCP) solutions through a micropore of a plastic gastight syringe. The parallelized orientation of PEO domains induced by thi...

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Veröffentlicht in:Nanoscale 2016-02, Vol.8 (6), p.3268-3273
Hauptverfasser: Qu, Ting, Zhao, Yongbin, Li, Zongbo, Wang, Pingping, Cao, Shubo, Xu, Yawei, Li, Yayuan, Chen, Aihua
Format: Artikel
Sprache:eng
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Alignment
Arrays
Block copolymers
Extrusion
Nanostructure
Nanowires
Orientation
Syringes
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container_end_page 3273
container_issue 6
container_start_page 3268
container_title Nanoscale
container_volume 8
creator Qu, Ting
Zhao, Yongbin
Li, Zongbo
Wang, Pingping
Cao, Shubo
Xu, Yawei
Li, Yayuan
Chen, Aihua
description The orientation transition from perpendicular to parallel alignment of PEO cylindrical domains of PEO- b -PMA(Az) films has been demonstrated by extruding the block copolymer (BCP) solutions through a micropore of a plastic gastight syringe. The parallelized orientation of PEO domains induced by this micropore extrusion can be recovered to perpendicular alignment via ultrasonication of the extruded BCP solutions and subsequent annealing. A plausible mechanism is proposed in this study. The BCP films can be used as templates to prepare nanowire arrays with controlled layers, which has enormous potential application in the field of integrated circuits. The orientation transition from perpendicular to parallel alignment of PEO cylindrical domains of PEO- b -PMA(Az) films has been demonstrated by extruding the block copolymer (BCP) solutions through a micropore of a plastic gastight syringe.
doi_str_mv 10.1039/c5nr09140c
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source Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects Alignment
Arrays
Block copolymers
Extrusion
Nanostructure
Nanowires
Orientation
Syringes
title Micropore extrusion-induced alignment transition from perpendicular to parallel of cylindrical domains in block copolymers
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