Vertically Oriented Nanostructures of Poly(3-dodecylthiophene)-Containing Rod-Coil Block Copolymers

Kyu Seong Lee; Jaeyong Lee; Chungryong Choi; Yeseong Seo; Hong Chul Moon; Jin Kon Kim

doi:10.1021/acs.macromol.7b02739

Vertically Oriented Nanostructures of Poly(3-dodecylthiophene)-Containing Rod-Coil Block Copolymers

Kyu Seong Lee, Jaeyong Lee, Chungryong Choi, Yeseong Seo, Hong Chul Moon, Jin Kon Kim

Department of Chemical Engineering

Pohang University of Science and Technology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We synthesized star-shaped 18-arm polystyrene-block-poly(3-dodecylthiophene) copolymers ((PS-b-P3DDT)₁₈) having lamellar microdomains, based on the cyclodextrin (CD) core. Without any surface modifications on a silicon substrate, thin films of (PS-b-P3DDT)₁₈ showed vertically oriented lamellar microdomains by thermal annealing. This is attributed to the entropic penalty induced by star-shaped chain architecture. In contrast, a parallel orientation was observed in the film morphology of the corresponding linear PS-b-P3DDT. We also found that the P3DDT crystals were confined in the lamellar microdomains of (PS-b-P3DDT)₁₈ as edge-on structure.

Original language	English
Pages (from-to)	4956-4965
Number of pages	10
Journal	Macromolecules
Volume	51
Issue number	13
DOIs	https://doi.org/10.1021/acs.macromol.7b02739
State	Published - 10 Jul 2018

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title = "Vertically Oriented Nanostructures of Poly(3-dodecylthiophene)-Containing Rod-Coil Block Copolymers",

abstract = "We synthesized star-shaped 18-arm polystyrene-block-poly(3-dodecylthiophene) copolymers ((PS-b-P3DDT)18) having lamellar microdomains, based on the cyclodextrin (CD) core. Without any surface modifications on a silicon substrate, thin films of (PS-b-P3DDT)18 showed vertically oriented lamellar microdomains by thermal annealing. This is attributed to the entropic penalty induced by star-shaped chain architecture. In contrast, a parallel orientation was observed in the film morphology of the corresponding linear PS-b-P3DDT. We also found that the P3DDT crystals were confined in the lamellar microdomains of (PS-b-P3DDT)18 as edge-on structure.",

author = "Lee, {Kyu Seong} and Jaeyong Lee and Chungryong Choi and Yeseong Seo and Moon, {Hong Chul} and Kim, {Jin Kon}",

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doi = "10.1021/acs.macromol.7b02739",

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T1 - Vertically Oriented Nanostructures of Poly(3-dodecylthiophene)-Containing Rod-Coil Block Copolymers

AU - Lee, Kyu Seong

AU - Lee, Jaeyong

AU - Choi, Chungryong

AU - Seo, Yeseong

AU - Moon, Hong Chul

AU - Kim, Jin Kon

PY - 2018/7/10

Y1 - 2018/7/10

N2 - We synthesized star-shaped 18-arm polystyrene-block-poly(3-dodecylthiophene) copolymers ((PS-b-P3DDT)18) having lamellar microdomains, based on the cyclodextrin (CD) core. Without any surface modifications on a silicon substrate, thin films of (PS-b-P3DDT)18 showed vertically oriented lamellar microdomains by thermal annealing. This is attributed to the entropic penalty induced by star-shaped chain architecture. In contrast, a parallel orientation was observed in the film morphology of the corresponding linear PS-b-P3DDT. We also found that the P3DDT crystals were confined in the lamellar microdomains of (PS-b-P3DDT)18 as edge-on structure.

AB - We synthesized star-shaped 18-arm polystyrene-block-poly(3-dodecylthiophene) copolymers ((PS-b-P3DDT)18) having lamellar microdomains, based on the cyclodextrin (CD) core. Without any surface modifications on a silicon substrate, thin films of (PS-b-P3DDT)18 showed vertically oriented lamellar microdomains by thermal annealing. This is attributed to the entropic penalty induced by star-shaped chain architecture. In contrast, a parallel orientation was observed in the film morphology of the corresponding linear PS-b-P3DDT. We also found that the P3DDT crystals were confined in the lamellar microdomains of (PS-b-P3DDT)18 as edge-on structure.

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U2 - 10.1021/acs.macromol.7b02739

DO - 10.1021/acs.macromol.7b02739

M3 - Article

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JO - Macromolecules

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ER -

Vertically Oriented Nanostructures of Poly(3-dodecylthiophene)-Containing Rod-Coil Block Copolymers

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