ICCAS OpenIR
Synthesis and mesomorphic properties of Cu-coordinating liquid crystalline polysilsesquioxanes with heptyl side groups
Wan, YZ; Qi, H; Zhang, LJ; Wang, RF; Xie, P; Zhang, RB
2000-08-01
Source PublicationLIQUID CRYSTALS
ISSN0267-8292
Volume27Issue:8Pages:1113-1118
AbstractIn order to study the influence of the concentration of a flexible group on the liquid crystal behaviour of copper-containing complexes, series of Cu-coordinated, P-diketone-based liquid crystalline polysilsesquioxanes (abbr. H-DK-Cu) and random copolymethylsilsesquioxanes (abbr. Me-DK-Cu), have been synthesized by the hydrosilylation reaction of a vinyl-terminated beta-diketone and 1-heptene with the polyhydrosilsesquioxane (H-T) and with the random copolymethylhydrosilsesquioxane (Me-T), followed by reaction with Cu(NH3)(4)Cl-2. Their mesomorphic properties were investigated by differential scanning calorimetry and optical polarizing microscopy. The H-DK-Cu and Me-DK-Cu complexes with M-w of approximate to 1 x 10(4) are thermotropic liquid crystalline polymers and their clearing temperature and mesophase ranges are lower than those of the corresponding Cu-coordinated, P-diketone-based liquid crystalline polymethylsilsesquioxanes (Cu-FBDKLCP) without the n-heptyl flexible group. However, their liquidity within the temperature range of the liquid crystal state is better. The results are mainly attributed to the heptyl, flexible side group.
Indexed BySCI
Language英语
WOS IDWOS:000088330100017
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75720
Collection中国科学院化学研究所
Corresponding AuthorWan, YZ
Affiliation1.Acad Sinica, Inst Chem, Beijing 100080, Peoples R China
2.Beijing Univ Chem Technol, Dept Appl Chem, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Wan, YZ,Qi, H,Zhang, LJ,et al. Synthesis and mesomorphic properties of Cu-coordinating liquid crystalline polysilsesquioxanes with heptyl side groups[J]. LIQUID CRYSTALS,2000,27(8):1113-1118.
APA Wan, YZ,Qi, H,Zhang, LJ,Wang, RF,Xie, P,&Zhang, RB.(2000).Synthesis and mesomorphic properties of Cu-coordinating liquid crystalline polysilsesquioxanes with heptyl side groups.LIQUID CRYSTALS,27(8),1113-1118.
MLA Wan, YZ,et al."Synthesis and mesomorphic properties of Cu-coordinating liquid crystalline polysilsesquioxanes with heptyl side groups".LIQUID CRYSTALS 27.8(2000):1113-1118.
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