Arrangement of block copolymer microdomains confined inside hemispherical cavities

Dusik Bae, Gumhye Jeon, Hiroshi Jinnai, June Huh, Jin Kon Kim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We investigated, via scanning and transmission electron microscopy, the arrangement of the microdomains of symmetric polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined in hemispherical cavities. The hemispherical cavities were prepared by using anodic aluminum oxide (AAO) template, where the inner surface of the cavities was modified by thin brush layers of PS, PMMA, and PS-ran-PMMA copolymer. When the inner surface of the cavity is strongly selective to PS chains, concentric rings consisting of PS and PMMA microdomains are formed, replicating the confined geometry of hemisphere. However, as the selectivity of a brush to PS chains becomes weaker, various interesting morphologies are formed that have not been reported in the literature. The experimentally observed microdomain arrangement confined inside the hemispherical cavities was compared with the simulation results based on the dynamic Metropolis Monte Carlo method.

Original languageEnglish
Pages (from-to)5301-5307
Number of pages7
JournalMacromolecules
Volume46
Issue number13
DOIs
Publication statusPublished - 2013 Jul 9
Externally publishedYes

Fingerprint

Polymethyl Methacrylate
Brushes
Block copolymers
Copolymers
Polymethyl methacrylates
Polystyrenes
Monte Carlo methods
Aluminum Oxide
Transmission electron microscopy
Aluminum
Scanning electron microscopy
Oxides
Geometry

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Arrangement of block copolymer microdomains confined inside hemispherical cavities. / Bae, Dusik; Jeon, Gumhye; Jinnai, Hiroshi; Huh, June; Kim, Jin Kon.

In: Macromolecules, Vol. 46, No. 13, 09.07.2013, p. 5301-5307.

Research output: Contribution to journalArticle

Bae, Dusik ; Jeon, Gumhye ; Jinnai, Hiroshi ; Huh, June ; Kim, Jin Kon. / Arrangement of block copolymer microdomains confined inside hemispherical cavities. In: Macromolecules. 2013 ; Vol. 46, No. 13. pp. 5301-5307.
@article{e64c96f179314ca89c45e16b5a0c0810,
title = "Arrangement of block copolymer microdomains confined inside hemispherical cavities",
abstract = "We investigated, via scanning and transmission electron microscopy, the arrangement of the microdomains of symmetric polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined in hemispherical cavities. The hemispherical cavities were prepared by using anodic aluminum oxide (AAO) template, where the inner surface of the cavities was modified by thin brush layers of PS, PMMA, and PS-ran-PMMA copolymer. When the inner surface of the cavity is strongly selective to PS chains, concentric rings consisting of PS and PMMA microdomains are formed, replicating the confined geometry of hemisphere. However, as the selectivity of a brush to PS chains becomes weaker, various interesting morphologies are formed that have not been reported in the literature. The experimentally observed microdomain arrangement confined inside the hemispherical cavities was compared with the simulation results based on the dynamic Metropolis Monte Carlo method.",
author = "Dusik Bae and Gumhye Jeon and Hiroshi Jinnai and June Huh and Kim, {Jin Kon}",
year = "2013",
month = "7",
day = "9",
doi = "10.1021/ma4009324",
language = "English",
volume = "46",
pages = "5301--5307",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "13",

}

TY - JOUR

T1 - Arrangement of block copolymer microdomains confined inside hemispherical cavities

AU - Bae, Dusik

AU - Jeon, Gumhye

AU - Jinnai, Hiroshi

AU - Huh, June

AU - Kim, Jin Kon

PY - 2013/7/9

Y1 - 2013/7/9

N2 - We investigated, via scanning and transmission electron microscopy, the arrangement of the microdomains of symmetric polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined in hemispherical cavities. The hemispherical cavities were prepared by using anodic aluminum oxide (AAO) template, where the inner surface of the cavities was modified by thin brush layers of PS, PMMA, and PS-ran-PMMA copolymer. When the inner surface of the cavity is strongly selective to PS chains, concentric rings consisting of PS and PMMA microdomains are formed, replicating the confined geometry of hemisphere. However, as the selectivity of a brush to PS chains becomes weaker, various interesting morphologies are formed that have not been reported in the literature. The experimentally observed microdomain arrangement confined inside the hemispherical cavities was compared with the simulation results based on the dynamic Metropolis Monte Carlo method.

AB - We investigated, via scanning and transmission electron microscopy, the arrangement of the microdomains of symmetric polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined in hemispherical cavities. The hemispherical cavities were prepared by using anodic aluminum oxide (AAO) template, where the inner surface of the cavities was modified by thin brush layers of PS, PMMA, and PS-ran-PMMA copolymer. When the inner surface of the cavity is strongly selective to PS chains, concentric rings consisting of PS and PMMA microdomains are formed, replicating the confined geometry of hemisphere. However, as the selectivity of a brush to PS chains becomes weaker, various interesting morphologies are formed that have not been reported in the literature. The experimentally observed microdomain arrangement confined inside the hemispherical cavities was compared with the simulation results based on the dynamic Metropolis Monte Carlo method.

UR - http://www.scopus.com/inward/record.url?scp=84880158168&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880158168&partnerID=8YFLogxK

U2 - 10.1021/ma4009324

DO - 10.1021/ma4009324

M3 - Article

AN - SCOPUS:84880158168

VL - 46

SP - 5301

EP - 5307

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 13

ER -