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  • 學位論文

樹枝狀液晶分子的合成與鑑定

Synthesis and Characterization of Liquid Crystalline Dendrimers

指導教授 : 賴榮豊

摘要


本論文以收斂方式合成出二系列之樹枝狀分子。於第一系列,以多芳香環為中心核或在中心核增加立障或高極性基團,與二辛胺為末端官能基合成出(C8G3C3)2PMDA、(C8G3C3)2NTCDA、(C8G3)2DADB及(C8G3)2DADCN四種不同中心核的樹枝狀分子。在第二系列中,我們嘗試改變末端官能基進而調整長碳鏈數目並搭配三種不同類型的丙二胺中心核,合成出(OC8G3)2DAP、(OC8G3)2DAPDM及(OC8G3)2DMPD樹枝狀分子。並以偏光顯微鏡、熱微差掃描分析儀及X光粉末繞射來進行這兩系列樹枝狀分子之研究。

並列摘要


In this study, we utilized different type central core and n-octyl alcohol or di-octylamine as the terminal functional group to synthesize two series of dendrimers. Dendrimers were characterized by polarizing microscopy, differential scanning calorimetry and powder XRD. In these results, two series of dendrimers displayed liquid crystalline phase during thermal treatment.

參考文獻


1. I. Prieto, J. Teetsov, M. A. Fox, D. A. Vanden and A. J. Bard, J. Phys. Chem. A., 2001, 105, 520‒523.
2. Jr. W. W. Schloman and H. Morrison, J. Am. Chem. Soc., 1977, 99, 3342−3345.
3. E. Buhleier, W. Wehner and F. Vogtle, Synthesis, 1978, 9, 155‒158.
4. D. A. Tomalia, H. Baker, J. Dewald, M. Hall, G. Kallos, S. Martin, J. Ryder and P. J. Smith, Polymer, 1985, 17, 117‒132.
5. G. R. Newkome, Z. Yao, G. R. Baker and V. K. Gupta, J. Org. Chem. 1985, 50, 2003‒2004.

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