PAMAM分子与Cr^(3+)离子配位作用的研究  

Research on the Complexation Between Polyamidoamine (PAMAM) Dendrimer and Cr^(3+) Ions

作　　者：程义云[1] 陈大柱[1] 何平笙[1] 

机构地区：[1]中国科学技术大学高分子科学与工程系,合肥230026

出　　处：《功能高分子学报》2005年第2期265-268,共4页Journal of Functional Polymers

摘　　要：利用外向分散合成法合成了以乙二胺为核的聚酰胺胺(PAMAM)树枝形分子,并用分光光度法研究了不同代数的PAMAM分子与Cr3+的配位作用。实验结果表明PAMAM分子的代数、浓度以及水溶液的pH值对配位作用有显著的影响。随着PAMAM分子代数的增加,其与Cr3+的最大配位数不断增加,得出的结果和理论值接近。The starburst polyamidoamine (PAMAM) dendrimer is synthesized by alternating repeated reaction of ethylenediamine and methyl acrylate. The complexation between PAMAM and Cr^3+ was investigated. The results show that PAMAM generation and pH condition strongly influence the complexation between PAMAM and the ions. The maximum complexing number of Cr^3+ ion with PAMAM was obtained from the spectrum curves of the complex, and the result is almost similar to the theory value.

关 键 词：聚酰胺-胺 树枝形分子 外向分散合成法 分光光度法 PAMAM 配位作用 CR^3+ 

分 类 号：O633.22[理学—高分子化学] O641.4[理学—化学]