Topology-transformable block copolymers based on a rotaxane structure: change in bulk properties with same composition

Hiroki Sato, Daisuke Aoki, Hironori Marubayashi, Satoshi Uchida, Hiromitsu Sogawa, Shuichi Nojima, Xiaobin Liang, Ken Nakajima, Teruaki Hayakawa and Toshikazu Takata ()
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Hiroki Sato: Tokyo Institute of Technology, Ookayama
Daisuke Aoki: Tokyo Institute of Technology, Ookayama
Hironori Marubayashi: Tokyo Institute of Technology, Ookayama
Satoshi Uchida: Tokyo Institute of Technology, Ookayama
Hiromitsu Sogawa: Tokyo Institute of Technology, Ookayama
Shuichi Nojima: Tokyo Institute of Technology, Ookayama
Xiaobin Liang: Tokyo Institute of Technology, Ookayama
Ken Nakajima: Tokyo Institute of Technology, Ookayama
Teruaki Hayakawa: Tokyo Institute of Technology, Ookayama
Toshikazu Takata: Tokyo Institute of Technology, Ookayama

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract The topology of polymers affects their characteristic features, i.e., their microscopic structure and macroscopic properties. However, the topology of a polymer is usually fixed during the construction of the polymer chain and cannot be transformed after its determination during the synthesis. In this study, topology-transformable block copolymers that are connected via rotaxane linkages are introduced. We will present systems in which the topology transformation of block copolymers changes their 1) microphase-separated structures and 2) macroscopic mechanical properties. The combination of a rotaxane structure at the junction point and block copolymers that spontaneously form microphase-separated structures in the bulk provides access to systems that cannot be attained using conventional covalent bonds.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26249-0

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DOI: 10.1038/s41467-021-26249-0

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