Switching the morphologies of cylindrical polycation brushes by ionic and supramolecular inclusion complexes.
Switching the morphologies of cylindrical polycation brushes by ionic and supramolecular inclusion complexes.
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DOI：
10.1021/ja807302j
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发表时间：
2009-01
影响因子：
15
通讯作者：
Youyong Xu;S. Bolisetty;M. Ballauff;A. Müller
中科院分区：
文献类型：
--
作者：
Youyong Xu;S. Bolisetty;M. Ballauff;A. Müller
圆柱形聚阳离子刷与表面活性剂十二烷基硫酸钠（SDS）在水溶液中形成离子络合物，这导致刷的蠕虫至球体塌陷。α-和β-环糊精（CD）通过与SDS形成超分子包合复合物使刷返回蠕虫状构象。当β-CD用于包合复合物时，加入1-金刚烷基氯化铵通过形成更强的包合复合物释放SDS，导致刷状物崩解成球体。
Cylindrical polycation brushes form an ionic complex with surfactant sodium dodecyl sulfate (SDS) in aqueous solution, which causes a worm-to-sphere collapse of the brush. Alpha- and beta-cyclodextrin (CD) returns the brush to the worm-like conformation by forming a supramolecular inclusion complex with SDS. When beta-CD was employed for the inclusion complex, addition of 1-adamantylammonium chloride releases SDS by forming a stronger inclusion complex, causing the recollapse of the brush to spheres.