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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/60198

    Title: 澱粉 - 醋酸乙烯酯共聚合反應之研究
    Authors: 劉小萍;邱文英;賴森茂;董崇民;蕭耀貴;沈曉復
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 共聚合;澱粉;醋酸乙烯酯;生物分解性;Copolymerization;Starch;Vinyl Acetate;Biodegradability
    Date: 2001
    Issue Date: 2011-10-13 13:27:00 (UTC+8)
    Publisher: 臺北市:臺灣科技大學
    Abstract: 本研究乃利用硝酸銨鈰(CAN)和過硫酸鉀(KPS)兩種起始劑,合成玉米澱粉與醋酸乙烯酯之接枝共聚合物 (Starch-PVAc copolymer),並藉著聚醋酸乙烯酯之醇解而得到澱粉-聚乙烯醇共聚合物。研究發現不同的起始系統會影響單體總轉化率,以硝酸銨鈰起始時初期單體反應較快,但以過硫酸鉀起始之最終總轉化率較高。而接枝聚合所得之接枝比值及接枝效率亦有不同之結果。另外,經由醇化後可獲得緻密且具有相當韌性之澱粉-聚乙烯醇薄膜,此具有生物分解性的產物將有更多應用之潛力。
    In this study, cerium ammonium nitrate (CAN) and potassium persulfate(KPS) were used to initate the polymerization of vinyl acetate (VAc)monomer onto corn starch. Then the emulsion solution of starch- PVAcwas alcoholized to obtain starch-PVOH. It was found that at first therate of monomer conversion was faster for a CAN system. However, theequilibrium conversion attained was lower than that of a KPS system.Not only the monomer conversion, but also the grafting ratio andgrafting efficiency were quite different in both systems. In addition,a dense and flexible starch-PVOH film capable of biodegradable wasobtained, which may target some potential application.
    Relation: 第二十四屆高分子研討會論文專輯2001=Proceediings of the 24th ROC Polymer Symposium 2001,頁779-780
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Proceeding

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