Optimizing the structure and molecular weight of polymers for graphene dispersants

Shimpei Takeda, Yuta Nishina

Research output: Contribution to journalArticlepeer-review

Abstract

Graphene is an allotrope of carbon consisting of a single-atom-thick honeycomb lattice nanostructure. Among the various preparation methods for graphene, the liquid-phase exfoliation of graphite is mass-producible and cost-effective. To facilitate the exfoliation of graphite in organic solvents, polymers can be employed as dispersants. We synthesized polymer dispersants with various monomer ratios and molecular weights and investigated the efficient acquisition of graphene from graphite. Graphene with a uniform thickness was obtained when graphite was exfoliated using an optimized polymer dispersant. The optimized polymer enabled a high yield and concentration of graphene using liquid-phase exfoliation.

Original languageEnglish
JournalPolymer Journal
DOIs
Publication statusAccepted/In press - 2022

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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