Periodic Functionalization of Graphene-Layered Alumina Nanofibers with Aromatic Thermosetting Copolyester via Epitaxial Step-Growth Polymerization

Mete Bakir, Jacob L. Meyer, Irina Hussainova, Andre Sutrisno, James Economy, Iwona Jasiuk

Research output: Contribution to journalArticlepeer-review

Abstract

In situ epitaxial step-growth polymerization driven interfacial functionalization of aromatic thermosetting copolyester (ATSP) with multilayered graphene wrapped alumina nanofiber surface is reported. During a thermal condensation polymerization, ATSP dip-coated fiber strands develop a nanohybrid shish–kebab structure with periodically assembled and off-surface grown micrometer-scale lamella ATSP domains. A mechanism combining the Plateau–Rayleigh instability, the Marangoni effect, and the epitaxial growth phenomena is proposed to elucidate controlling parameters in the process. X-ray diffraction measurements clearly demonstrate the formation of a mesomorphic lamella phase not present within either the neat ATSP or pristine fiber samples. Results of solid-state nuclear magnetic resonance and thermogravimetric analysis reveal the development of an interfacial coupling between the graphene-coated ceramic nanofibers and the ATSP matrix.

Original languageEnglish (US)
Article number1700338
JournalMacromolecular Chemistry and Physics
Volume218
Issue number24
DOIs
StatePublished - Dec 2017

Keywords

  • aromatic thermosetting copolyesters
  • epitaxial polymerization
  • multilayer graphene-layered alumina nanofibers
  • nanohybrid shish–kebab
  • periodic functionalization

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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