| 聚甲基丙烯酸与修饰聚丙烯酰胺间的络合作用 |
| |
| 引用本文： | 刘守信,房喻,胡道道,吕宏旺.聚甲基丙烯酸与修饰聚丙烯酰胺间的络合作用[J].物理化学学报,2000,16(3):214-220. |
| |
| 作者姓名： | 刘守信 房喻 胡道道 吕宏旺 |
| |
| 作者单位： | Department of Chemistry,Shanxi Normal University,Xi'an 710062 |
| |
| 基金项目： | 国家自然科学基金(29973024),教育部留学回国人员基金资助项目
The Project Sponsored by the NSFC(29973024) and the Educational Ministry of China |
| |
| 摘 要： | 利用荧光各向异性，荧光探针和荧光猝灭等静态光物理技术研究了稀水溶液中聚甲基丙烯酸（ＰＭＡＡ）与阳离子修饰聚丙烯酰胺（ＱＣＰＡＭ）间的络合作用。结果表明：在ｐＨ＝２－８范围内，ＰＭＡＡ与ＱＣＰＡＭ之间发生明显络合，但以ｐＨ为４时络合作用最大，最佳络合本比为１：１（单体单元比），络合作用的发生大大地改变了ＰＭＡＡ的构象行为，ＰＭＡＡ构象对ｐＨ和络合作用的双重依赖性有可能在新型“智能”凝胶的设计合成上获
|
| 关 键 词： | 荧光各向异性 络合作用 聚甲基丙烯酸 阳离子型聚合物 |
| 收稿时间： | 1999-07-12 |
| 修稿时间： | 1999年7月12日 |
Complexation between Poly(methacrylic acid) and Cationically Modified Polyacrylamide |
| |
| Liu Shouxin,Fang Yu,Hu Daodao,Lü Hongwang.Complexation between Poly(methacrylic acid) and Cationically Modified Polyacrylamide[J].Acta Physico-Chimica Sinica,2000,16(3):214-220. |
| |
| Authors: | Liu Shouxin Fang Yu Hu Daodao Lü Hongwang |
| |
| Institution: | Department of Chemistry,Shanxi Normal University,Xi'an 710062 |
| |
| Abstract: | The complexation between poly(methacrylic acid)(PMAA) and cationically modified polyacrylamide(QCPAM) was investigated by fluorescence anisotropy measurements,fluorescence probe studies and fluorescence quenching techniques.It has been demonstrated that the complexation occurs between pH 2 and 8,and the best conditions for complexation are pH 4 and complex ratio 1:1(PMAA:QCPAM,in monomer unit).In addition,along with the complexation,the conformation of PMAA changed dramatically.The pH and complexation dependences of the conformation of PMAA may find some uses in design and synthesis of “ intelligent” polyelectrolyte gels. |
| |
| Keywords: | Fluorescence anisotropy Complexation Poly(methacrylic acid) Cationically modified polyacrylamide |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
