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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/85609

    Title: 聚離胺酸樹狀高分子的合成與奈米型態結構
    Other Titles: Study of Synthesis and Nano-Scale Morphology of Poly-Lysine Dendrimer
    Authors: 林達鎔;劉國勝;林俊良;黃郁馨;陳建仰
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 樹狀高分子;聚離胺酸;奈米材料;合成;Dendrimer;Poly-lysine;Nano material;Synthesis
    Date: 2008
    Issue Date: 2013-04-09 11:46:41 (UTC+8)
    Abstract: 樹狀高分子,是一種新穎且可能展現具有奈米分子特性的材料。由於樹狀高分子可能擁有內部架構與表層官能基團的不同化學結構,因此同時展現總體的與奈米界面的特性。因為有機溶劑對離胺酸的溶解度受限制,使得樹狀聚離胺酸的合成受到相當限制。本研究選擇有機溶劑與水的混合溶液系統當作溶劑,探討影響離胺酸聚合反應的熱力學的因素與動力學的機制,例如溫度、反應時間、加入的除水反應化合物等。我們以批式的反應聚合方式來合成樹狀聚離胺酸高分子。其化學結構與反應的分析是使用紅外線光譜儀、核磁共振儀等儀器。紅外線光譜儀的結果顯示有醯胺鍵結,證明聚合反應成功。物理性質與形態結構的檢測,則利用穿透式電子顯微鏡及微差掃描式熱分析儀,穿透式電子顯微鏡所測得的顆粒大小大約在2.5~3nm 左右;分子量則利用電灑式質譜儀來檢測,大約為8000 左右。本研究的主要目標是要建立樹狀聚離胺酸高分子的合成技術,分子量與其分布的控制,樹狀化學結構的完整性等的探討。
    Dendrimer is a novel type of polymer that may impart nano-scale characteristics. It contains functional moieties at its outer layer structure and has both bulk and interfacial properties. Since lysine is nearly immiscible in organic solvent except water, the polymerization of lysine was not easily accessible. Therefore, we employed binary solvent mixture (DMSO and water) to study the thermodynamic and kinetic features of the polymerization of lysine. The reaction in batch process was investigated. The chemical structure was analysed by using FTIR and NMR. The result of FTIR showed the formation of amide bounding, which can proved that the polymerization was achieved. Physical properties and morphology of dendrimers were characterized by TEM and DSC. TEM found that the particle size was about 2.5~3nm. Molecular weight of dendrimers characterized by ESI-Mass is about 8000.
    Relation: 2005高分子聯合會議---第28屆高分子研討會94年國科會高分子學門研究成果發表會94高分子學會年會論文集,11頁
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Proceeding

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