【摘要】 以氨基卟啉为基质材料 ,戊二醛为桥连基合成了一种新型网状纳米结构希夫碱卟啉聚合物。利用索氏提取器 ,分别以氯仿、N ,N 二甲基甲酰胺做溶剂 ,回流至流出液无色。氯仿N ,N 二甲基甲酰胺提取物的紫外光谱带较单体TAPP蓝移了 3～ 5nm。产物的红外光谱与单体TAPP相比在 1 687cm-1附近出现 1个新的吸收峰 ,它可归属于CN伸缩振动 ,通过定量红外光谱分析单体和聚合物中端基的吸收比率估计出希夫碱卟啉的聚合度约为 1 5。透射电镜显示卟啉聚合物具有网状结构 ,卟啉间平均距离约为 4 1nm ,与从键长( 3 9nm)估计值大体一致 ,表明TAPP与戊二醛已键连成卟啉聚合物更多还原

【Abstract】 A new type of Schiff-base porphyrin polymer with network nanostructure was synthesized using tetra(4-aminophenyl) porphyrin(TAPP) as matrix and glutaraldehyde as a bridging compound. The reaction mixture was refluxed in a Soxlet extractor until the eluents became colorless. The UV spectral bands of the chloroform extracts and N,N-dimethylformamide extract have 3～5 nm blue shifts as compared to that of the TAPP. Compared with the TAPP, a new absorbance band at 1 687 cm -1 was observed in the infrared spectrum of the product owing to CN contractive vibration. The polymerization degree of the Schiff-base porphyrin was estimated to be 15 by quantitative infrared-analysis of the absorbance ratio of the end groups in the polymer and the monomer. The TEM results indicated that the porphyrin polymer has network structure with an average distance of 4.1 nm between porphyrin molecules, close to the estimated bond length(3.9 nm).更多还原