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研究生: 郭馨蓮
Shin-Lien Kuo
論文名稱: 大環胺醚及大環胺醚界面活性劑在有機催化及液膜離子輸送之應用
Application of Cryptand and Cryptand Surfactant in Catalytic
指導教授: 施正雄
Shih, Jeng-Shong
學位類別: 碩士
Master
系所名稱: 化學系
Department of Chemistry
畢業學年度: 81
語文別: 中文
論文頁數: 108
中文關鍵詞: 大環胺醚;界面活性劑;醛醇縮合反應;相轉移催化劑;液膜;離子輸送Cryptand;Surfactant;Aldol condensation;Phase transfer
論文種類: 學術論文
相關次數: 點閱:202下載:0
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  • 中 文 摘 要大環胺醚及大環胺醚界面活性劑在有機催化反應及液膜離
    子輸送之應用本研究分為兩部分。(1)大環胺醚相轉移催化劑催化反應,
    及(2)大環胺醚界面活性劑離子輸送載體的研製及應用。首先利用大環胺
    醚cryptand[22相轉移催化劑以催化醛醇縮和反應,結果發現得到比其他
    冠狀醚更好的效果。隨著反應溫度及溶劑極性的增加,會提高反應的產率
    。金屬氫氧化物的種類,也會影響催化的效果。冠狀醚,氫氧化物及反應
    物濃度效應亦被探討,並提出可能的反應機構。其次,合成大環胺醚界面
    活性劑C10H21- cryptand[22],並成功地應用在液膜離子輸送實驗,發現
    對銅離子有非常好的選擇性。其輸送順序為Cu2+>Sr2+>Co2+>Ba2+>Ni2+>
    Fe3+>K+ >Na+。陰離子種類也會影響輸送的效果。且藉由和鈉離子的主動
    運輸,可達到輸送胺基酸及其他有機物的目的。而對於鍶(Sr2+)及釔(
    Y3+ )的高輸送差異或許可用來分離他們。此低毒性且高輸送能力的大環
    胺醚界面活性劑為一具潛力的生物膜輸送載體之代替品。

    Abstract Application of Cryptand and Cryptand Su- rfactants in
    Catalytic Organic Reactions and Ion Transports There are two
    parts in this study.Fir- stly,the drift type cryptand[22] and
    ot- her crown ethers such as 18C6 and 15C5 were applied as
    phase transfer catalyst. The elevations of temperature and
    solve- nt polarity seem to enhance the reaction yield.In
    addition ,effects of concentra- tion on the catalytic reaction
    with cro- wn ether ,salt and reactant were also i- nvestigated
    and a possible mechanism is proposed too. Secondly,the cryptand
    surfactant C10- H21-cryptand[22] was synthesized and su-
    ccessfully used as an ion transport car- rier for some metal
    ions.The order of i- on transport rate for these ions is Cu2+
    >Sr2+>Co2+>Ba2+>Ni2+>Fe3+>K+>Na+.The li- pophilicity of counter
    anion wii affect the transport of these cation ions.Amino acids
    were transported by symport with sodium ion through the
    surfactant liquid membrane.The specificity of Sr2+ to Y3+ may
    be applied to seperate them.The low toxicity and high transport
    ability of the cryptand surfactant maybe can be sp- plied as a
    "real" ion transport carrier through biological membranes.
    Abstract Application of Cryptand and Cryptand Su- rfactants in

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