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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 α-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 mesomorphic−isotropic transition at 129 °C.
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