Complex Macrophase-Separated Nanostructure Induced by Microphase Separation in Binary Blends of Lamellar Diblock Copolymer Thin Films

Jianqi Zhang, Dorthe Posselt, Detlef-M. Smilgies, Jan Perlich, Konstantinos Kyriakos, Sebastian Jaksch, Christine M. Papadakis

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The nanostructures of thin films spin-coated from binary blends of compositionally symmetric polystyrene-b-polybutadiene (PS-b-PB) diblock copolymer having different molar masses are investigated by means of atomic force microscopy (AFM) and grazing-incidence small-angle X-ray scattering (GISAXS) after spin-coating and after subsequent solvent vapor annealing (SVA). In thin films of the pure diblock copolymers having high or low molar mass, the lamellae are perpendicular or parallel to the substrate, respectively. The as-prepared binary blend thin films feature mainly perpendicular lamellae in a one-phase state, indicating that the higher molar mass diblock copolymer dominates the lamellar orientation. The lamellar thickness decreases linearly with increasing volume fraction of the low molar mass diblock copolymer. After SVA, well-defined macrophase-separated nanostructures appear, which feature parallel lamellae near the film surface and perpendicular ones in the bulk
OriginalsprogEngelsk
TidsskriftMacromolecular Rapid Communications
Vol/bind35
Udgave nummer18
Sider (fra-til)1622-1629
Antal sider8
ISSN1022-1336
DOI
StatusUdgivet - 2014

Citer dette

Zhang, Jianqi ; Posselt, Dorthe ; Smilgies, Detlef-M. ; Perlich, Jan ; Kyriakos, Konstantinos ; Jaksch, Sebastian ; Papadakis, Christine M. / Complex Macrophase-Separated Nanostructure Induced by Microphase Separation in Binary Blends of Lamellar Diblock Copolymer Thin Films. I: Macromolecular Rapid Communications. 2014 ; Bind 35, Nr. 18. s. 1622-1629 .
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title = "Complex Macrophase-Separated Nanostructure Induced by Microphase Separation in Binary Blends of Lamellar Diblock Copolymer Thin Films",
abstract = "The nanostructures of thin films spin-coated from binary blends of compositionally symmetric polystyrene-b-polybutadiene (PS-b-PB) diblock copolymer having different molar masses are investigated by means of atomic force microscopy (AFM) and grazing-incidence small-angle X-ray scattering (GISAXS) after spin-coating and after subsequent solvent vapor annealing (SVA). In thin films of the pure diblock copolymers having high or low molar mass, the lamellae are perpendicular or parallel to the substrate, respectively. The as-prepared binary blend thin films feature mainly perpendicular lamellae in a one-phase state, indicating that the higher molar mass diblock copolymer dominates the lamellar orientation. The lamellar thickness decreases linearly with increasing volume fraction of the low molar mass diblock copolymer. After SVA, well-defined macrophase-separated nanostructures appear, which feature parallel lamellae near the film surface and perpendicular ones in the bulk.",
author = "Jianqi Zhang and Dorthe Posselt and Detlef-M. Smilgies and Jan Perlich and Konstantinos Kyriakos and Sebastian Jaksch and Papadakis, {Christine M.}",
year = "2014",
doi = "10.1002/marc.201400238",
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pages = "1622--1629",
journal = "Macromolecular Rapid Communications",
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Complex Macrophase-Separated Nanostructure Induced by Microphase Separation in Binary Blends of Lamellar Diblock Copolymer Thin Films. / Zhang, Jianqi; Posselt, Dorthe; Smilgies, Detlef-M.; Perlich, Jan; Kyriakos, Konstantinos; Jaksch, Sebastian; Papadakis, Christine M.

I: Macromolecular Rapid Communications, Bind 35, Nr. 18, 2014, s. 1622-1629 .

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Complex Macrophase-Separated Nanostructure Induced by Microphase Separation in Binary Blends of Lamellar Diblock Copolymer Thin Films

AU - Zhang, Jianqi

AU - Posselt, Dorthe

AU - Smilgies, Detlef-M.

AU - Perlich, Jan

AU - Kyriakos, Konstantinos

AU - Jaksch, Sebastian

AU - Papadakis, Christine M.

PY - 2014

Y1 - 2014

N2 - The nanostructures of thin films spin-coated from binary blends of compositionally symmetric polystyrene-b-polybutadiene (PS-b-PB) diblock copolymer having different molar masses are investigated by means of atomic force microscopy (AFM) and grazing-incidence small-angle X-ray scattering (GISAXS) after spin-coating and after subsequent solvent vapor annealing (SVA). In thin films of the pure diblock copolymers having high or low molar mass, the lamellae are perpendicular or parallel to the substrate, respectively. The as-prepared binary blend thin films feature mainly perpendicular lamellae in a one-phase state, indicating that the higher molar mass diblock copolymer dominates the lamellar orientation. The lamellar thickness decreases linearly with increasing volume fraction of the low molar mass diblock copolymer. After SVA, well-defined macrophase-separated nanostructures appear, which feature parallel lamellae near the film surface and perpendicular ones in the bulk.

AB - The nanostructures of thin films spin-coated from binary blends of compositionally symmetric polystyrene-b-polybutadiene (PS-b-PB) diblock copolymer having different molar masses are investigated by means of atomic force microscopy (AFM) and grazing-incidence small-angle X-ray scattering (GISAXS) after spin-coating and after subsequent solvent vapor annealing (SVA). In thin films of the pure diblock copolymers having high or low molar mass, the lamellae are perpendicular or parallel to the substrate, respectively. The as-prepared binary blend thin films feature mainly perpendicular lamellae in a one-phase state, indicating that the higher molar mass diblock copolymer dominates the lamellar orientation. The lamellar thickness decreases linearly with increasing volume fraction of the low molar mass diblock copolymer. After SVA, well-defined macrophase-separated nanostructures appear, which feature parallel lamellae near the film surface and perpendicular ones in the bulk.

U2 - 10.1002/marc.201400238

DO - 10.1002/marc.201400238

M3 - Journal article

VL - 35

SP - 1622

EP - 1629

JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

SN - 1022-1336

IS - 18

ER -