Correlations of nanoscale film morphologies and topological confinement of three-Armed cage block copolymers

Brian J. Ree; Yusuke Satoh; Takuya Isono; Toshifumi Satoh

doi:10.1039/d1py00421b

Correlations of nanoscale film morphologies and topological confinement of three-Armed cage block copolymers

Brian J. Ree, Yusuke Satoh, Takuya Isono, Toshifumi Satoh

Chemistry

Hokkaido University

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

6 Scopus citations

Abstract

The nanoscale film morphologies of three-Armed cage block copolymers showing three different variations (Cage-A,-B, and-C) have been investigated for the first time via synchrotron grazing incidence X-ray scattering. For all cage block copolymers, the individual block components revealed amorphous characteristics. Nevertheless, they all exhibited either cylindrical or lamellar phase-separated nanostructures. Key structural parameters such as domain spacing (d-spacing), structural ordering, and orientation varied depending on the cage topologies. In particular, the d-spacing of nanostructures ranged from 6.50 to 10.85 nm. Compared to their linear block copolymer analogues, the cage block copolymers achieved a 54.8-74.5% d-spacing reduction. Overall, structural parameters such as d-spacing, structural ordering, and orientation were found to be correlated with the topological confinement which originated from the molecular cage topology.

Original language	English
Pages (from-to)	3451-3460
Number of pages	10
Journal	Polymer Chemistry
Volume	12
Issue number	23
DOIs	https://doi.org/10.1039/d1py00421b
State	Published - 21 Jun 2021

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title = "Correlations of nanoscale film morphologies and topological confinement of three-Armed cage block copolymers",

abstract = "The nanoscale film morphologies of three-Armed cage block copolymers showing three different variations (Cage-A,-B, and-C) have been investigated for the first time via synchrotron grazing incidence X-ray scattering. For all cage block copolymers, the individual block components revealed amorphous characteristics. Nevertheless, they all exhibited either cylindrical or lamellar phase-separated nanostructures. Key structural parameters such as domain spacing (d-spacing), structural ordering, and orientation varied depending on the cage topologies. In particular, the d-spacing of nanostructures ranged from 6.50 to 10.85 nm. Compared to their linear block copolymer analogues, the cage block copolymers achieved a 54.8-74.5% d-spacing reduction. Overall, structural parameters such as d-spacing, structural ordering, and orientation were found to be correlated with the topological confinement which originated from the molecular cage topology.",

author = "Ree, {Brian J.} and Yusuke Satoh and Takuya Isono and Toshifumi Satoh",

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T1 - Correlations of nanoscale film morphologies and topological confinement of three-Armed cage block copolymers

AU - Ree, Brian J.

AU - Satoh, Yusuke

AU - Isono, Takuya

AU - Satoh, Toshifumi

PY - 2021/6/21

Y1 - 2021/6/21

N2 - The nanoscale film morphologies of three-Armed cage block copolymers showing three different variations (Cage-A,-B, and-C) have been investigated for the first time via synchrotron grazing incidence X-ray scattering. For all cage block copolymers, the individual block components revealed amorphous characteristics. Nevertheless, they all exhibited either cylindrical or lamellar phase-separated nanostructures. Key structural parameters such as domain spacing (d-spacing), structural ordering, and orientation varied depending on the cage topologies. In particular, the d-spacing of nanostructures ranged from 6.50 to 10.85 nm. Compared to their linear block copolymer analogues, the cage block copolymers achieved a 54.8-74.5% d-spacing reduction. Overall, structural parameters such as d-spacing, structural ordering, and orientation were found to be correlated with the topological confinement which originated from the molecular cage topology.

AB - The nanoscale film morphologies of three-Armed cage block copolymers showing three different variations (Cage-A,-B, and-C) have been investigated for the first time via synchrotron grazing incidence X-ray scattering. For all cage block copolymers, the individual block components revealed amorphous characteristics. Nevertheless, they all exhibited either cylindrical or lamellar phase-separated nanostructures. Key structural parameters such as domain spacing (d-spacing), structural ordering, and orientation varied depending on the cage topologies. In particular, the d-spacing of nanostructures ranged from 6.50 to 10.85 nm. Compared to their linear block copolymer analogues, the cage block copolymers achieved a 54.8-74.5% d-spacing reduction. Overall, structural parameters such as d-spacing, structural ordering, and orientation were found to be correlated with the topological confinement which originated from the molecular cage topology.

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U2 - 10.1039/d1py00421b

DO - 10.1039/d1py00421b

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JO - Polymer Chemistry

JF - Polymer Chemistry

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Correlations of nanoscale film morphologies and topological confinement of three-Armed cage block copolymers

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