高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (10): 1773.

• 研究简报 • 上一篇    下一篇

树枝状大分子的自组装超薄膜

王金凤1, 贾欣茹1, 李盈1, 钟竑1, 陈金玉1, 罗国宾1, 李明谦1, 危岩2   

  1. 1. 北京大学化学与分子工程学院, 北京 100871;
    2. Drexel大学化学系, 费城19104, 美国
  • 收稿日期:2000-05-17 出版日期:2001-10-24 发布日期:2001-10-24
  • 通讯作者: 贾欣茹(1952年出生),女,副教授,主要从事树枝状大分子的合成、修饰及功能化研究.
  • 基金资助:

    国家自然科学基金(批准号:29992590;59973001)资助

Self-Assembly Ultrathin Films Based On Dendrimers

WANG Jin-Feng1, JIA Xin-Ru1, LI Ying1, ZHONG Hong1, CHEN Jin-Yu1, LUO Guo-Bin1, LI Ming-Qian1, WEI Yen2   

  1. 1. College of Chemistryand Molecular Engineering, Peking University, Beijing 100871, China;
    2. Chemistry Department, Drexel University, Philadelphia PA19104, USA
  • Received:2000-05-17 Online:2001-10-24 Published:2001-10-24

关键词: 树枝状化合物, 自组装, 静电作用

Abstract: An ultrathin film with forth generation poly(aminoamine)(PAMAM) dendrimers (methyl quaternary ammonium salt) as polycation and poly(sodium p styrenesulfonate) (PSS) as polyainon was fabricated via sequential deposition. It shows that the step by step depositions carried out smoothly by monitoring with UV Vis spectrometer. The multilayer film is rather flat with a mean roughness of 0.39 nm determined by AFM. The average thickness of a bilayer is 5.0 nm obtained from XRD, which indicates that the dendrimers molecules were compressed and possess high flattening.

Key words: Dendrimer, Self assembly, Electrostatic interaction

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