Highly asymmetric lamellar nanostructures from nanoparticle-linear hybrid block copolymers

Watanabe, Kodai; Katsuhara, Satoshi; Mamiya, Hiroaki et al.

Nanoscale, 2020, 12(31), 16526-16534

Permalink : https://hdl.handle.net/2115/82517

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/82517
タイトル
Highly asymmetric lamellar nanostructures from nanoparticle-linear hybrid block copolymers
著者
Watanabe, Kodai ; Katsuhara, Satoshi ; Mamiya, Hiroaki ; Kawamura, Yukihiko ; Yamamoto, Takuya ; Tajima, Kenji ; Isono, Takuya ; Satoh, Toshifumi
著者名
Watanabe, Kodai
著者名
Katsuhara, Satoshi
著者名
Mamiya, Hiroaki
著者名
Kawamura, Yukihiko
e-Rad_Researcher
30525986
著者名
Yamamoto, Takuya
著者名
Tajima, Kenji
著者名
Isono, Takuya
e-Rad_Researcher
80291235
著者名
Satoh, Toshifumi
言語
英語
キーワード
A-LAM
BCP
発行日
2020-08-21
出版者
Royal Society of Chemistry
収録物名
Nanoscale
巻(号)
12(31)
ページ
16526-16534
抄録
The highly asymmetric lamellar (A-LAM) nanostructure is one of the most important template geometries for block copolymer (BCP) lithography. However, A-LAM is unattainable from conventional BCPs, and there is no general molecular design strategy for A-LAM-forming BCP. Herein, a nanoparticle-linear hybrid BCP system is reported, which is designed based on the intramolecular crosslinking technique, as a remarkably effective platform to obtain the A-LAM morphology. The hybrid BCPs consisting of polystyrene single-chain nanoparticles and linear polylactide segments show a remarkable capability to form the A-LAM morphology in bulk, where a maximum width ratio of 4.1 between the two domains is obtained. This unusual phase behavior is attributed to the bulky and rigid characteristics of the nanoparticle block. Furthermore, the thin films of these hybrid BCPs show perpendicularly oriented A-LAM morphology on a chemically modified Si substrate, allowing promising application in the fabrication of asymmetric line-and-space nanopatterns.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
2040-3364
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1039/d0nr05209d