本研究合成含冠狀醚支鏈的冠狀醚－膽石醇液晶。此冠狀醚液晶不僅
具液晶性質，且仍保有冠狀醚在離子輸送上之功能及選擇性。 為使此
系統更切合生物體細胞膜內之離子傳輸，將此高溫型冠狀醚－膽石醇液晶
，與另一膽石醇液晶依不同比例混合，形成混合液晶，並加入不同的金屬
鹽類，尋找一安定的室溫型液晶。本研究使用電腦膜擬系統(InsightII
2.2 & Discover 3.1)分別繪出分子架構及對分子做動力學計算，以說明
混合液晶之生成與否及液晶相轉移溫度範圍之變化。實驗結果試圖找出混
合液晶之理論依據，並藉此預測混合液晶之生成與液晶溫度範圍變化之趨
勢。期盼可由這套電腦模擬系統提供尋找適用之混合液晶的一些訊息。
此種膽石醇－冠狀醚衍生物，具有明顯的疏水基(Chol -esteryl
Group) 及親水基(Crown Ether Group)，比一般冠狀醚更符合界面活性劑
之分子架構，以苯駢菲(Pyrene)螢光光譜及表面張力儀偵測其臨界微胞生
成濃度(Critical Micellar Concentration, C.M.C)，並探討微胞形成條
件。

moiety such as cholesteryl Benzo-15-Crown-5 (B15C5- COOCh) has
been synthesized.The crown ether chol- esteric-liquid crystal
also has the property of ion tr- ansport carrier.In order to
look for room temperatu- re liquid crystal,the crown ether-
cholesteric derivat- ive (B15C5COOCh) was mixed with other
cholesteric liquid crystals with different molar ratios and
some inorganic salts were added to the mixtures. Comphrehensive
graphic molecular modeling pro- grams (Insight II 2.2 and
Discover 3.1) were empl- oyed to draw the molecular mechanism
and caculate molecular energy of mixed liquid crystal.This
study was expected to understand the formation of mixed liquid
crystal and the variation of liquid crystal ph- ase transtion
temperature range. The cholesteryl Benzo-15-Crown-5 was
exhibit- ed to have distintive characteristics of a surfactant.
Fluorescene pyrene probe ,as sensitive tool,was ap- plied to
detect the C.M.C. of cholesteryl Benzo-15- crown-5 by the
Spectrofluorometer and surface tens- ion meter.
moiety such as cholesteryl Benzo-15-Crown-5 (B15C5- COOCh) has