Langmuir-Blodgett films of helical rigid-rod poly(quinoxaline-2,3-diyl)s

Yoshihiko Ito, Toshiyuki Miyake, Michinori Suginome, Rie Katakura, Masaya Mitsuishi, Tokuji Miyashita

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Optically pure, helical poly(quinoxaline-2,3-diyl)s (degree of polymerization, n10-100), prepared by asymmetric living polymerization of 1,2-diisocyano-3,6-dimethyl-4,5-di(propoxymethyl)benzene with an optically pure organopalladium initiator, formed stable monolayers on a water surface. As the polymerization degree increased, more closely packed monolayers were formed, as indicated by surface pressure-area (π-A) isotherms. Up to 54 monolayers were deposited onto the solid support using the Langmuir-Blodgett (LB) technique. Polarized ultraviolet spectra of LB films showed that the helical axis was orientated parallel to the dipping direction. This optical property indicates that polymer molecules are organized anisotropically in LB films.

Original languageEnglish
Pages (from-to)406-410
Number of pages5
JournalPolymer Journal
Volume42
Issue number5
DOIs
Publication statusPublished - 2010 May

Keywords

  • Helical polymer
  • Langmuiri blodgett
  • Quinoxaline

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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