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将酰氯化的羧基金属卟啉(MP)与表面含羟基的苯乙烯-甲基丙烯酸羟基乙酯共聚物微球(P(St-co-HEMA))进行酯化反应,制备了共聚物微球固载的金属卟啉催化剂(P(St-co-HEMA)MP).采用扫描电镜、紫外-可见光谱、红外光谱和热重等手段对微球进行了表征,并考察了它在“金属卟啉-抗坏血酸-分子氧”体系中催化环己烷羟化反应性能.结果表明,共聚物微球固载的金属卟啉比非固载的金属卟啉具有更高的催化活性,催化剂重复使用4次,仍保持较高催化活性.各共聚物微球固载的金属卟啉催化活性顺序为P(St-co-HEMA)FeP>P(St-co-HEMA)MnP>P(St-co-HEMA)CoP.
The esterification of the chlorinated carboxyl metalloporphyrin (MP) with the hydroxyl group-containing styrene-hydroxyethyl methacrylate copolymer microspheres (P (St-co-HEMA)) to prepare the copolymer microspheres (P (St-co-HEMA) MP). The microspheres were characterized by scanning electron microscopy, ultraviolet-visible spectroscopy, infrared spectroscopy and thermogravimetry. Porphyrin-ascorbic acid-molecular oxygen "system.The results show that the metalloporphyrins supported on the copolymer microspheres have a higher catalytic activity than the non-immobilized metalloporphyrins, and the catalyst repeat The catalytic activities of the metalloporphyrins immobilized on the microspheres of each copolymer were as follows: P (St-co-HEMA) FeP> P (St-co-HEMA) MnP> co-HEMA) CoP.