Electrical switching based on dimensionality transitions in nanostructured polymers

O. Ikkala, J. Ruokolainen, R. Mäkinen, M. Torkkeli, R. Serimaa, T. Mäkelä, G. ten Brinke

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Abstract

Supramolecular hierarchical conducting nanostructures are obtained by complexing amphiphilic oligomers with block copolymers. Nominally each pyridine group of poly(styrene)-block-poly(4-vinyl pyridine), i.e. (PS-block-P4VP), is first protonated by methane sulphonic acid (MSA) to yield PS-block-P4VP(MSA)(1.0). It is further hydrogen bonded with stoichiometric amount of pentadecyl phenol (PDP) to form PS-block-P4VP(MSA)(1.0)(PDP)(1.0). The polyelectrolytic domains are subject to reversible phase transitions from "semi Id" slabs to 2d lamellae and further to Id cylinders upon heating. The transitions manifest in the thermally activated conductivity. Extension to conjugated polymers is discussed to achieve temperature controlled switching based on electronic conductivity.

Original languageEnglish
Pages (from-to)1498-1501
Number of pages4
JournalSynthetic Metals
Volume102
Issue number1-3
DOIs
Publication statusPublished - Jun-1999
EventInternational Conference on Science and Technology of Synthetic Metals (ICSM 98) - , France
Duration: 12-Jul-199818-Jul-1998

Keywords

  • self-organization in macromolecules
  • order-disorder phase transitions
  • structural phase transitions
  • conducting polymers
  • switches
  • CONDUCTING POLYANILINE
  • MOLECULAR RECOGNITION
  • SURFACTANT COMPLEXES
  • BLOCK-COPOLYMERS
  • SYSTEMS
  • STATE

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