Journal
MACROMOLECULES
Volume 43, Issue 14, Pages 6024-6032Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma100847g
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Funding
- National Natural Science Foundation of China [20634010, 20874002, 20874003, 20974002]
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A series of mesogen-jacketed liquid crystalline polymers (MJLCPs) with polysiloxane backbones have been synthesized by hydrosilylation of polymethylhydrosiloxane with styrenic derivatives Their properties were studied in detail by a combination of H-1 NMR. Fourier transform inhaled spectroscopy, differential scanning calorimetry, polarized light microscopy, wide-angle X-ray diffraction, scanning electron microscopy, and contact angle measurements Wide-angle X-ray diffraction results indicated that these MJLCPs based on highly flexible polysiloxane main chain could also self-assemble into supramolecular columnar nematic or smectic liquid crystalline phases compared with structurally similar MJLCPs having a polyethylene backbone, but their liquid crystalline ranges were narrowed significantly. Low contact-angle values of the MJLCPs could be attributed to the fact that the polysiloxane backbones were embedded in mesogenic side chains, which also confirmed the mesogen-jacketed model for MJLCPs
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