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    Title: 幾丁聚醣/丙烯酸嵌段共聚合體的合成
    Other Titles: The Synthesis of Chitosan/Acrylic Acid Graft Copolymers
    Authors: 董崇民;莊仲揚;邱文英;岑翰儒
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 幾丁聚醣;丙烯酸;嵌段共聚物;過硫酸鉀;離子吸附
    Chitosan;Acrylic Acid;Block Copolymer;Potassium Persulfate;Ionic Adsorption
    Date: 2003
    Issue Date: 2010-01-11 11:53:31 (UTC+8)
    Abstract: 本研究主要是以過硫酸鉀為起始劑,合成出幾丁聚醣/丙烯酸嵌段共聚合體。並對其共聚合體製成薄膜,用於吸附銅離子與鐵離子,藉此了解其吸附模式。由實驗發現,幾丁聚醣比例較高的共聚合體對銅離子較具吸附能力,而對鐵離子的吸附能力較差。主因可能是鐵離子和幾丁聚醣的胺基以及羥基形成的螯合物穩定度較低,使得鐵離子無法順利螯合。而丙烯酸含量較多的共聚合體則對鐵離子吸附性較佳。主因是共聚物中的聚丙烯酸羧酸基容易和鐵離子形成穩定的螯合物,進而吸附鐵離子。而當銅、鐵離子同時存在時,由於互相干擾,使吸附量下降,比單一離子時還低。
    In this research, the initiator, potassium persulfate (KPS), was used to synthesize the chitosan/acrylic acid block copolymers. The copolymer film was prepared by oven drying. The adsorption of copper and ferrite ions in this copolymer film was studied. As the amount of chitosan increased in the copolymer, the adsorption of copper ion increased. Yet, the adsorption amount of ferrite ion decreased. This is because the chelating of copper ion with the amino and the hydroxyl groups in the chitosan was more stable than the ferrite ion. On the contrary, when the amount of poly(acrylic acid) increased in the copolymer, the capability of adsorption of ferrite ion increased. When the copper and the ferrite ions both existed in the solution, the amount of adsorption of each ion was even lower than the adsorption of the individual ion.
    Relation: 2003幾丁質幾丁聚醣研討會與年會大會手冊論文集=Proceedings of 2003 Taiwan Chitin Chitosan Symposium & Agenda of Society Annual Meeting,頁199-202
    Appears in Collections:[化學工程與材料工程學系暨研究所] 會議論文

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