新型聚合物双氮杂假冠醚PACE的合成研究与吸附特性

以 2 苯氧基乙醇为起始剂 ,用先聚合后功能基化和钠离子模板的方法 ,合成了一种新型酚醛型聚合物双氮杂假冠醚PACE .应用FTIR光谱跟踪监控的方法研究了一系列合成反应 .获得了以苯氧乙醇为单体的酚醛交联反应的最佳实验配方和在该酚醛母体聚合物上进行的一系列取代反应的较佳实验条件 ,同时给出了一系列聚合物的红外光谱资料 .测试了PACE对常见金属离子的静态吸附性能 ,结果表明 ,PACE对K+ ,Na+ ,Hg2 + ,Cd2 + ,Fe3 + ,Pb2 + 和Cu2 + 离子具有良好的吸附性能 .其吸附容量分别达 1 43,0 98,1 84,0 6 8,0 79,0 6 1和 0 5 7mmol g r.通过FTIR光谱对吸附机理做了初步探讨 .结果表明 ,在聚合物PACE的金属离子配合物中 ,不仅CH2 OCH2 ,PhOCH2 和CH2 NCH2 参与了配位 ,同时CH2 OH亦不同程度地参与了配位 .PACE对Hg2 + 的吸附过程中伴随着缓慢的氧化还原现象 ,在此过程中 ,PACE中的CH2 OH被氧化成为COOH ,而Hg2 + 被还原为Hg22 + .

STUDIES ON SYNTHESIS OF NOVEL TYPE POLYMERIC BISAZACROWN PSEUDO ETHER PACE AND ADSORPTION PROPERTIES

Using 2-phenoxyethanol as initial material, a novel phenolic type pol y meric bisazacrown pseudo ether PACE were synthesized by methods of first polymer ization then functionalization and Na template-guided. Series synthetic rea cti ons were studied using FTIR spectra method for tracking monitor. A best experim e ntal formula of phend-aldehyde crosslinking reaction using monomer phenoxyethan o l and a better conditions of series substitution reactions on the phenolic aldeh yde parent polymer were achieved. FTIR spectra data of polymers of a series were achieved also. Polymeric static adsorption properties for normal metallic ions were tested. The results showed that the polymer has good adsorption properties for K, Na, Hg 2, Cd 2, Fe 3, Pb 2 , Cu 2 and the capacities of adsorption were 1.43, 0.98, 1.84, 0.68, 0.79, 0.61 and 0.57 mmol/g-r, respectively. By FTIR spec tra method, a preliminary discussion on adsorption mechanism was given in this p aper. The results showed not only,could chel ate metalion, but alsoCH 2OHdid to a certain extent in the above mentioned com plexes. There is slow oxidation-reduction in the adsorption of Hg 2 on PA CE and theCH 2OHn the polymer PACE was o xidized toCOOHJG)and H2 were reduced t o Hg22.