Electrical properties of anionically synthesized conducting block copolymer from the precursor polystyrene-block-poly(phenyl vinyl sulfoxide)

Louis M L LEUNG*, Kam Ho Tan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

A series of styrene-phenyl vinyl sulfoxide diblock copolymers was prepared using the 'living' anionic polymerization technique. The thermally labile phenyl vinyl sulfoxides undergo an elimination process to yield acetylene moieties at 150°C. The weight and volume of the iodine-doped conducting fractions were adjusted by changing the length of the styrene block. A sigmoidal composition-dependent conductivity and a maximum in the dielectric constant measurement near the threshold composition suggested a 'percolation-like' conducting process. In addition to electrical measurement, the block copolymers were also characterized by infra-red spectroscopy, thermal analysis, 1H n.m.r., and size exclusion chromatography.

Original languageEnglish
Pages (from-to)1556-1560
Number of pages5
JournalPolymer
Volume35
Issue number7
DOIs
Publication statusPublished - Mar 1994

Scopus Subject Areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

User-Defined Keywords

  • anionic polymerization
  • block copolymer
  • electrical properties

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