- 期刊
室溫型強誘電性液晶之合成
Synthesis of Novel Siloxane Room Temperature Liquid Crystalline
摘要
此篇文章目的為合成室溫型含矽氧烷之液晶材料，以4'-hydroxybiphenyl-4-yl 4-hydroxybenzoate為核心，在旋光基的選擇上使用了butyl 2-hydroxypropanoate，並在非旋光末端基加上矽氧烷，並對矽氧烷是否影響液晶相轉移行為及液晶相進行研究觀察。在實驗中利用偏光顯微鏡（polarizing optical microscope, POM）、示差掃描式卡計（differential scanning calorimeter, DSC）、X射線繞射儀（X-ray diffraction, XRD）進行化合物液晶相的鑑定與討論，發現該液晶澄清點溫度有下降的趨勢，並具有寬廣的液晶相溫度範圍，並於文中進一步探討該液晶結構對於液晶相（SmC*）的影響。
並列摘要
This article's goal was to analyze the synthesis of room temperature liquid crystal materials with low molar mass organosiloxane. The structures contain 4'-hydroxybiphenyl-4-yl 4-hydroxybenzoate core and chiral butyl 2-hydroxypropanoate unit, and organosiloxane on the end of the achiral molecules. A few novel series of room temperature compounds were synthesized, and the mesophases exhibited by them were compared. The mesophases under discussion were investigated using polarizing microscopy, differential scanning calorimetry, and X-ray diffraction. The substituent had a strong influence in reducing the clearing temperatures and increasing temperature range. The influence of the molecular structure on the occurrence of the SmC* phase was investigated in the article.
延伸閱讀
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