Please use this identifier to cite or link to this item: https://doi.org/10.1080/026782901462355
Title: Synthesis and mesomorphic properties of a novel ladder-like 1,4-phenylene-bridged liquid crystalline polysiloxane containing ester-based mesogenic side groups
Authors: Liu, C.-Q.
Liu, Y.
Kong, B.
Xie, P.
Zhang, R.-B.
He, C.-B. 
Chung, N.T.-S. 
Issue Date: 2001
Citation: Liu, C.-Q., Liu, Y., Kong, B., Xie, P., Zhang, R.-B., He, C.-B., Chung, N.T.-S. (2001). Synthesis and mesomorphic properties of a novel ladder-like 1,4-phenylene-bridged liquid crystalline polysiloxane containing ester-based mesogenic side groups. Liquid Crystals 28 (1) : 35-43. ScholarBank@NUS Repository. https://doi.org/10.1080/026782901462355
Abstract: A new ladder-like 1,4-phenylene-bridged liquid crystalline polysiloxane bearing ester-based mesogenic side groups, LPLCPS, has been synthesized by hydrosilylation of a SiH-terminated ester-based mesogen compound (1) with a ladder-like 1,4-phenylene-bridged polyvinylsiloxane (LPPVS) containing vinyl-terminated side groups in the presence of dicyclopentadienylplatinum(II) chloride (Cp2PtCl2) catalyst. Compound 1 was synthesized by hydrosilylation of 1,1,3,3-tetramethyldisiloxane (HMM) with the vinyl-terminated ester-based mesogenic compounds. Various characterization methods including FTIR, 1H NMR, 13C NMR, 29Si NMR, polarizing optical microscopy, differential scanning calorimetry and X-ray diffraction were used and the results combined to demonstrate that LPLCPS shows thermotropic smectic mesomorphic behaviour with a high clearing point and a wide mesophase range.
Source Title: Liquid Crystals
URI: http://scholarbank.nus.edu.sg/handle/10635/92392
ISSN: 02678292
DOI: 10.1080/026782901462355
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