The swelling and adsorption properties of the F44-PTU resin for metal ions Cu2+,Pb2+,Cd2+,Hg2+,Pt4+ and Pd2+ were studied, and the adsorption properties and mechanism for nobel metal ions Pt4+ and Pd2+ were studied es...The swelling and adsorption properties of the F44-PTU resin for metal ions Cu2+,Pb2+,Cd2+,Hg2+,Pt4+ and Pd2+ were studied, and the adsorption properties and mechanism for nobel metal ions Pt4+ and Pd2+ were studied especially. The results showed that the resin had the better adsorption properties for Pt4+ and Pd2+ than other metal ions, and also had bigger adsorption velocity. The adsorption process of the resin for Pt4+ fited the langmuir equation, while the adsorption of the resin for Pd2+ fited the Freundich equation. The process of adsorption of the resin for Pt4+ and Pd2+ were all exothermic.展开更多
以4-溴-1,8-萘二甲酸酐为原料,经亚胺化、酯化等反应,设计合成了一种新的乙烯基荧光功能单体N-甲基丙烯酰氧乙基-4-溴-1,8-萘酰亚胺(NPMA),并用此单体与N-异丙基丙烯酰胺(NIPAAm)通过自由基聚合制备了荧光共聚物PⅠ、PⅡ和PⅢ。采用1 H ...以4-溴-1,8-萘二甲酸酐为原料,经亚胺化、酯化等反应,设计合成了一种新的乙烯基荧光功能单体N-甲基丙烯酰氧乙基-4-溴-1,8-萘酰亚胺(NPMA),并用此单体与N-异丙基丙烯酰胺(NIPAAm)通过自由基聚合制备了荧光共聚物PⅠ、PⅡ和PⅢ。采用1 H NMR(核磁共振氢谱)、UV-vis(紫外-可见)光谱和荧光光谱对共聚物的结构及性能进行了表征,结果表明聚合物对金属Pd2+具有高灵敏度的选择性识别作用。展开更多
文摘The swelling and adsorption properties of the F44-PTU resin for metal ions Cu2+,Pb2+,Cd2+,Hg2+,Pt4+ and Pd2+ were studied, and the adsorption properties and mechanism for nobel metal ions Pt4+ and Pd2+ were studied especially. The results showed that the resin had the better adsorption properties for Pt4+ and Pd2+ than other metal ions, and also had bigger adsorption velocity. The adsorption process of the resin for Pt4+ fited the langmuir equation, while the adsorption of the resin for Pd2+ fited the Freundich equation. The process of adsorption of the resin for Pt4+ and Pd2+ were all exothermic.
文摘以4-溴-1,8-萘二甲酸酐为原料,经亚胺化、酯化等反应,设计合成了一种新的乙烯基荧光功能单体N-甲基丙烯酰氧乙基-4-溴-1,8-萘酰亚胺(NPMA),并用此单体与N-异丙基丙烯酰胺(NIPAAm)通过自由基聚合制备了荧光共聚物PⅠ、PⅡ和PⅢ。采用1 H NMR(核磁共振氢谱)、UV-vis(紫外-可见)光谱和荧光光谱对共聚物的结构及性能进行了表征,结果表明聚合物对金属Pd2+具有高灵敏度的选择性识别作用。