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

文献情報

出版日 2021-05-25

DOI 10.1039/D1PY00421B

インパクトファクター 5.582

著者

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

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要旨

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.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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

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