Novel liquid crystalline polyrotaxane with movable mesogenic side chains

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

doi:10.1021/ma070785u

Novel liquid crystalline polyrotaxane with movable mesogenic side chains

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

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

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) (M_w = 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 language	English
Pages (from-to)	6859-6862
Number of pages	4
Journal	Macromolecules
Volume	40
Issue number	19
DOIs	https://doi.org/10.1021/ma070785u
Publication status	Published - 2007 Sept 18
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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title = "Novel liquid crystalline polyrotaxane with movable mesogenic side chains",

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.",

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year = "2007",

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doi = "10.1021/ma070785u",

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T1 - Novel liquid crystalline polyrotaxane with movable mesogenic side chains

AU - Kidowaki, Masatoshi

AU - Nakajima, Takao

AU - Araki, Jun

AU - Inomata, Aoi

AU - Ishibashi, Hitoshi

AU - Ito, Kohzo

PY - 2007/9/18

Y1 - 2007/9/18

N2 - 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.

AB - 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.

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Novel liquid crystalline polyrotaxane with movable mesogenic side chains

Abstract

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