银离子与聚酰胺-胺型树形高分子配位作用的研究  

Study on the Complexation between Poly(amidoamine) Dendrimers and Silver Ion

作　　者：李国平[1] 罗运军[1] 徐厚才[1] 崔艳霞[1] 谭惠民[1] 

机构地区：[1]北京理工大学材料科学与工程学院,北京100081

出　　处：《无机化学学报》2003年第11期1212-1216,共5页Chinese Journal of Inorganic Chemistry

基　　金：教育部跨世纪优秀人才培养计划基金资助项目;国防科工委基础研究计划资助项目(No..J1500E002)。

摘　　要：The complexation between poly(amidoamine) (PAMAM) dendrimers and silver ion was studied in this paper. The results showed that generations and surface groups of dendrimers, reaction time, pH value, mole ratio of Ag+ /PAMAM dendrimers, as well as reaction temperature strongly influence complexation between Ag+ and PAMAM dendrimers. The maximum complexing number of Ag+ that amino , hydroxyl and carboxylate terminated PAMAM dendrimers could bind has been obtained. It has been found that the measured value of amino and hydroxyl terminated PAMAM is almost similar to the theory value, but to carboxylate terminated PAMAM, there is a discrepancy between the measured value and theory value because of the electrostatic interaction between the silver ion and carboxyl group.The complexation between poly (amidoamine) (PAMAM) dendrimers and silver ion was studied in this paper. The results showed that generations and surface groups of dendrimers, reaction time, pH value, mole ratio of Ag+/ PAMAM dendrimers, as well as reaction temperature strongly influence complexation between Ag+ and PAMAM dendrimers. The maximum complexing number of Ag+ that amino-, hydroxyl- and carboxylate- terminated PAMAM dendrimers could bind has been obtained. It has been found that the measured value of amino- and hydroxyl- terminated PAMAM is almost similar to the theory value, but to carboxylate- terminated PAMAM, there is a discrepancy between the measured value and theory value because of the electrostatic interaction between the silver ion and carboxyl group.

关 键 词：银离子 聚酰胺-胺型树形高分子 配位 PAMAM树形高分子 银离子 分光光度法 

分 类 号：O614.122[理学—无机化学] O633.22[理学—化学]