Directed Self-Assembly of Conducting Polymer Nanofilms on Single-Crystalline Ice Facets

Sang Yup Lee, Sung Ryul Kim, Dong June Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

The assembly of aniline molecules was controlled using single-crystalline ice facets that have highly ordered but dissimilarly organized OH groups at the surface. We found a difference in electrical properties of polyaniline nanofilms synthesized on dissimilar ice surfaces; basal, primary prism, and secondary prism planes. We discovered through molecular dynamics that ice-directed self-assembly induced layered structures of aniline monomers depending on enhanced formation of hydrogen bonding network per ice facet. The anilines assembled better-ordered on secondary prism plane and their lattice coincided with a repeat distance of H2O molecules on ice. This resulted in improved electrical properties of polyaniline nanofilms after subsequent polymerization. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)820-825
Number of pages6
JournalMacromolecular Research
Volume30
Issue number11
DOIs
Publication statusPublished - 2022 Nov

Keywords

  • degree of ordering
  • directed self-assembly
  • molecular dynamics
  • polyaniline
  • single-crystalline ice

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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