Synthesis of pendant radical- and ion-containing block copolymers via ring-opening metathesis polymerization for organic resistive memory

Takeo Suga, Miki Sakata, Kohei Aoki, Hiroyuki Nishide

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Ring-opening metathesis polymerization (ROMP) using Grubbs third-generation catalyst directly yielded a norbornene-based polymer bearing robust redox-active radicals without any protection. Successive addition of imidazolium-containing norbornene in a one-pot reaction during ROMP produced pendant radical- and ion-containing block copolymers. The diode-structured thin-film devices fabricated with the obtained block polymers that had morphologies of spheres, lamellae, and inverse spheres exhibited conductive switching (write-once read-many-times, WORM) under a bias voltage, which revealed the dominant effect of the location of radicals and ions in the microphase-segregated domains on memory characteristics.

Original languageEnglish
Pages (from-to)703-707
Number of pages5
JournalACS Macro Letters
Volume3
Issue number8
DOIs
Publication statusPublished - 2014 Aug 19

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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