Effects of a Mechanically Interlocked Structure on Ionic Conductivity in Polyrotaxane-Based Polymer Electrolytes

Bitgaram Kim; Eunji Lee; Ji Hun Seo

doi:10.1021/acsmacrolett.4c00480

Effects of a Mechanically Interlocked Structure on Ionic Conductivity in Polyrotaxane-Based Polymer Electrolytes

Bitgaram Kim
, Eunji Lee
, Ji Hun Seo^*

^*Corresponding author for this work

Department of Materials Science and Engineering

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

6 Citations (Scopus)

Abstract

Polyrotaxane (PR) is a mechanically interlocked polymer (MIP) utilized as an electrolyte because of its distinctive property of dynamic molecular mobility. While numerous studies have concentrated on modifying external properties to decrease high crystallinity, few have explored the control of intrinsic properties. This study examines the crystalline properties and molecular mobility of PR-based electrolytes, along with their effects on ionic conductivity, by manipulating intrinsic properties. By systematically varying the inclusion ratio, we demonstrate that lower inclusion ratios lead to reduced crystallinity, enhancing molecular mobility. Consequently, 100PRE exhibits decreased crystallinity due to lower aggregation probabilities of α-cyclodextrins (α-CDs), longer T₂ relaxation times (0.215 s), and higher ionic conductivity (3.4 × 10^-3 S cm^-1 at 25 °C).

Original language	English
Pages (from-to)	1463-1468
Number of pages	6
Journal	ACS Macro Letters
Volume	13
Issue number	11
DOIs	https://doi.org/10.1021/acsmacrolett.4c00480
Publication status	Published - 2024 Nov 19

Bibliographical note

Publisher Copyright:
© 2024 American Chemical Society.

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acsmacrolett.4c00480

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title = "Effects of a Mechanically Interlocked Structure on Ionic Conductivity in Polyrotaxane-Based Polymer Electrolytes",

abstract = "Polyrotaxane (PR) is a mechanically interlocked polymer (MIP) utilized as an electrolyte because of its distinctive property of dynamic molecular mobility. While numerous studies have concentrated on modifying external properties to decrease high crystallinity, few have explored the control of intrinsic properties. This study examines the crystalline properties and molecular mobility of PR-based electrolytes, along with their effects on ionic conductivity, by manipulating intrinsic properties. By systematically varying the inclusion ratio, we demonstrate that lower inclusion ratios lead to reduced crystallinity, enhancing molecular mobility. Consequently, 100PRE exhibits decreased crystallinity due to lower aggregation probabilities of α-cyclodextrins (α-CDs), longer T2 relaxation times (0.215 s), and higher ionic conductivity (3.4 × 10-3 S cm-1 at 25 °C).",

author = "Bitgaram Kim and Eunji Lee and Seo, \{Ji Hun\}",

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T1 - Effects of a Mechanically Interlocked Structure on Ionic Conductivity in Polyrotaxane-Based Polymer Electrolytes

AU - Kim, Bitgaram

AU - Lee, Eunji

AU - Seo, Ji Hun

PY - 2024/11/19

Y1 - 2024/11/19

N2 - Polyrotaxane (PR) is a mechanically interlocked polymer (MIP) utilized as an electrolyte because of its distinctive property of dynamic molecular mobility. While numerous studies have concentrated on modifying external properties to decrease high crystallinity, few have explored the control of intrinsic properties. This study examines the crystalline properties and molecular mobility of PR-based electrolytes, along with their effects on ionic conductivity, by manipulating intrinsic properties. By systematically varying the inclusion ratio, we demonstrate that lower inclusion ratios lead to reduced crystallinity, enhancing molecular mobility. Consequently, 100PRE exhibits decreased crystallinity due to lower aggregation probabilities of α-cyclodextrins (α-CDs), longer T2 relaxation times (0.215 s), and higher ionic conductivity (3.4 × 10-3 S cm-1 at 25 °C).

AB - Polyrotaxane (PR) is a mechanically interlocked polymer (MIP) utilized as an electrolyte because of its distinctive property of dynamic molecular mobility. While numerous studies have concentrated on modifying external properties to decrease high crystallinity, few have explored the control of intrinsic properties. This study examines the crystalline properties and molecular mobility of PR-based electrolytes, along with their effects on ionic conductivity, by manipulating intrinsic properties. By systematically varying the inclusion ratio, we demonstrate that lower inclusion ratios lead to reduced crystallinity, enhancing molecular mobility. Consequently, 100PRE exhibits decreased crystallinity due to lower aggregation probabilities of α-cyclodextrins (α-CDs), longer T2 relaxation times (0.215 s), and higher ionic conductivity (3.4 × 10-3 S cm-1 at 25 °C).

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DO - 10.1021/acsmacrolett.4c00480

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JO - ACS Macro Letters

JF - ACS Macro Letters

IS - 11

ER -

Effects of a Mechanically Interlocked Structure on Ionic Conductivity in Polyrotaxane-Based Polymer Electrolytes

Abstract

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