此篇論文我們合成出具有六條聚乙醚官能基長鏈的六氮聯三伸萘 (HATN-TEG)室溫型液晶，並應用於鋰離子電池的電解質層。首先我們討論此種化合物混參加入不同重量比與不同分子量的聚乙二醇，觀察對於液晶相的影響。有趣的是，即使混參入大量的聚乙二醇，一樣可以得到穩定的液晶相。顯示聚乙二醇能相容地存在於聚乙醚官能基長鏈的管柱堆疊空隙處。此外，我們比較具有和HATN-TEG類似性質的親油性液晶HAT-C10，了解其相分離情況。
由於HATN-TEG之六條聚乙醚側鍊可做為鋰離子通道的能力，所以我們將極具應用潛力的HATN-TEG混參聚乙二醇作為鋰離子傳輸之通道。有趣的是，混入更多的鋰鹽仍可維持HATN-TEG液晶相的特性。我們混參了不同比例之HATN-TEG和聚乙二醇作為基質，再加入與過氯酸鋰，並且量測其交流阻抗。了解其作為鋰離子導體之效率。

In this thesis, we synthesized hexaazatrinaphthylene containing six triethylene glycol side chains (HATN-TEG) for application as potential electrolytes for lithium-ion. Our initial studies involved doping different weight percentage of polyethylene glycol having different molecular weight into HATN-TEG and investigate their influence on the mesophase behavior. Interestingly, stable mesophase can be obtained even at high concentration of PEG, showing the compatibility of the TEG-side chains and the impregnation of the PEG along the void of the columnar packing. Furthermore, the hydrophobic liquid crystal HAT-C10, which exhibits similar properties with HATN-TEG, was chosen to compare the phase segregation.
It was envisaged that this compound having six polyether side-chain may show special ability to create ion-channels for the lithium-ion. Next, the potential application of HATN-TEG and with PEG were studied as potential electrolyte for lithium ion transport. Interestingly, doping further with lithium salt can also maintain the mesogenic properties. We mixed the different types of HATN-TEG and PEG matrices with lithium perchlorate, and measured the electrochemical impedance to determine their efficiency for lithium ion conductivities.

目錄

第一章 緒論 ............................................1
1-1 前言..................................................1
1-2 液晶介紹..............................................2
1-2-1液晶簡介.........................................2
1-2-2 設計液晶分子的條件 ..............................3
1-2-3 液晶的分類.......................................4
1-3 文獻回顧.............................................12
1-3-1 盤狀液晶材料....................................12
1-3-2 六氮聯三伸苯與六氮聯三伸萘......................13
1-3-3 液晶材料混參系統................................16
第二章 實驗儀器與原理.................................25
2-1 實驗儀器.............................................25
2-2 液晶相的鑑定.........................................26
2-2-1 偏光顯微鏡......................................26
2-2-2 微差掃描卡計....................................27
2-2-3 X光粉末繞射.....................................27
2-3 交流阻抗法...........................................28
2-4 多波長干涉法.........................................29
第三章 實驗部分........................................32
3-1 研究動機.............................................32
3-2 研究策略.............................................33
3-3 實驗流程.............................................36
3-3-1 Tosylation.....................................36
3-3-2 Substitution...................................37
3-3-3 Nitration......................................38
3-3-4 Amination......................................39
3-3-5 Condensation...................................40
3-3-6 混參...........................................41
第四章 結果與討論.....................................42
4-1 HATN-TEG/PEG.........................................42
4-2 HATN-TEG/C10混參與比較..............................56
4-3 HATN-TEG/LiClO4 混參與阻抗量測.......................59
4-4 結論.................................................64
第五章 元件部分........................................65
5-1 基板清洗.............................................65
5-2 黃光顯影蝕刻製程.....................................66
5-3 元件製作.............................................67
參考文獻...............................................68
附錄...................................................70

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