聚酰胺-胺型树枝状高分子水溶液的表面活性  

Surface Activity of the PAMAM Dendrimer Aqueous Solutions

作　　者：龙飞[1] 范瑜[1] 丁慧君 贾欣茹[1] 李明谦[1] 

机构地区：[1]北京大学化学与分子工程学院

出　　处：《高等学校化学学报》1999年第3期495-497,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：树枝状化合物是一类三维的、高度有序的新型高分子．与传统高分子相比，这类化合物在合成时，可以在分子水平上严格控制，设计分子大小、形状、结构和功能基团，产物一般高度对称，单分散性好．因而具有广泛的潜在用途［１，２］．近年来，已引起广大化学工作者的重视．但...The generations of 0\^5, 1\^5, 2\^5, 3\^5, 4\^5 of the PAMAM dendrimers and 1, 2, 3, 4 of the PAMAM dendrimers have been synthesized with an EDA core. Surface tensions of the dendrimer aqueous solution have been measured by drop\|volume method. It is showed that (1) the dendrimer aqueous solutions have a surface activity and the order of the surface activity is \%G=4\^5>G=3\^5>G=2\^5>G=1\^5>G=0\^5; (2) \%the plateau area of \%G\%=4\^5 is more obvious than those of \%G\%=3\^5 and \%G\%=2\^5, the reason is not clear now; (3) as compared with \%G\%=0\^5, 1\^5, 2\^5, 3\^5, 4\^5 of dendrimer, the cationic ones containing \{\_C\-\{12\}H\-\{25\}\} had a higher surface activity.

关 键 词：树枝状化合物 表面活性 树枝状高分子 水溶液 

分 类 号：O631.4[理学—高分子化学] O647.2[理学—化学]