A colloidal silica poly(N-vivylcarbazole) nanocomposite disperseble in aqueous and nonaqueous media

S. S. Ray, M. Biswas

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

N-vinylcarbazole was polymerized in the presence of FeCl3-impregnated ultrafine silica powder in benzene solution. The precipitation of polymer followed by benzene extraction of the poly(N-vinylcarbazole)-silica mass afforded a poly(N-vinylcarbazole)-silica nanocomposite. The composite exhibited a higher thermal stability and higher dc conductivity relative to poly(N-vinylcarbazole) homopolymer. Transmission electron microscopy analysis confirmed the particle size of the composite to be about 26 ± 5 nm. The nanocomposite could be dispersed in water, dimethyl sulfoxide, or propanol in the presence of polyvinylpyrrollidone to yield a stable suspension.

Original languageEnglish
Pages (from-to)533-538
Number of pages6
JournalMaterials Research Bulletin
Volume33
Issue number4
DOIs
Publication statusPublished - 1998
Externally publishedYes

Keywords

  • A. composite
  • A. nanostructures
  • A. polymers
  • B. chemical synthesis
  • C. electron microscopy

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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