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Polyrotaxane-Based Solid Polymer Electrolyte with a Macromolecular Crosslinker

  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

This study explores an approach to incorporating polyrotaxane into solid polymer electrolytes (SPEs) through crosslinking with poly(ethylene glycol) (PEG). By leveraging the unique properties of polyrotaxane and the flexibility of PEG, we have developed SPEs with enhanced ionic conductivity, mechanical strength, and thermal stability. Our results indicate that the SPE film, containing equal weights of hydroxypropyl polyrotaxane (HyPR) and PEG with a molecular weight of 10000 Da, exhibits high thermal resistance above 150 °C, impressive flexibility with an elongation at break exceeding 550%, and an ionic conductivity of 2.715 × 10-5 S cm-1 at 30 °C.

Original languageEnglish
Pages (from-to)15124-15135
Number of pages12
JournalACS Applied Polymer Materials
Volume6
Issue number24
DOIs
StatePublished - 27 Dec 2024

Keywords

  • cross-linking
  • high ionic conductivity
  • polyrotaxane
  • slide-ring
  • solid polymer electrolyte

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