Novel liquid crystalline polyrotaxane with movable mesogenic side chains

Masatoshi Kidowaki, Takao Nakajima, Jun Araki, Aoi Inomata, Hitoshi Ishibashi, Kohzo Ito

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Abstract

A novel side-chain liquid crystalline polyrotaxane (LCPR) whose mesogenic side chains can slide and rotate on the linear backbone was first developed. To obtain the LCPR, 6-(4′-cyanobiphenyl-4″-yloxy)-hexanoyl chloride was prepared and reacted with a polyrotaxane consisting of a-cyclodextrin, poly(ethylene glycol) (Mw = 35 000), and adamantane end groups. The molecular characterization of the LCPR was performed with FT-IR, 1H NMR, and gel permeation chromatography analysis. Its phase structures and transitions were investigated by differential scanning calorimetry, wide-angle X-ray diffraction, and polarized light microscopy experiments. The experimental results shows that the LCPR has glass transition at 70°C and mesomorphicisotropic transition at 129°C.

Original languageEnglish
Pages (from-to)6859-6862
Number of pages4
JournalMacromolecules
Volume40
Issue number19
DOIs
Publication statusPublished - 2007 Sep 18
Externally publishedYes

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ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Kidowaki, M., Nakajima, T., Araki, J., Inomata, A., Ishibashi, H., & Ito, K. (2007). Novel liquid crystalline polyrotaxane with movable mesogenic side chains. Macromolecules, 40(19), 6859-6862. https://doi.org/10.1021/ma070785u