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制备了二氧化硅担载的壳聚糖固定化双水杨叉邻苯二胺合钴配合物 ,用元素分析 ,红外光谱 ,紫外-可见光谱和荧光光谱等方法对固定化配合物的组成和结构进行了表征。结果表明 :双水杨叉邻苯二胺合钴是通过其钴离子与壳聚糖的氨基氮配位实现其在壳聚糖的固定化。由于高分子固定化配合物对活性中心的基位隔离效应阻碍了双水杨叉邻苯二胺合钴的二聚体及过氧型载氧体的形成而使其对 3,4-二羟基苯基丙氨酸 (多巴 )的催化氧化活性远大于相应的小分子配合物。
The silica-supported chitosan-immobilized bis-salicylic acid o-phenylenediamine cobalt complex was prepared. The composition and the structure of the immobilized complex were characterized by elemental analysis, infrared spectroscopy, ultraviolet-visible spectroscopy and fluorescence spectroscopy The structure was characterized. The results show that bis-salicylic acid o-phenylenediamine cobalt is immobilized on chitosan by the coordination of its cobalt ion and amino nitrogen of chitosan. As the polymer immobilization complex on the active site of the base isolation effect hindered Shuang Shuyang fork o-phenylenediamine cobalt dimer and peroxo form the formation of oxygen carrier to 3,4-dihydroxy Phenylalanine (dopa) catalytic oxidation activity is much larger than the corresponding small molecule complexes.