高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (3): 560.

• 研究论文 • 上一篇    下一篇

具有可控分散性的不同粒径氨基酸双功能化介孔二氧化硅纳米颗粒

王玉,韩璐,车顺爱   

  1. 上海交通大学化学化工学院， 上海 200240
  • 收稿日期:2010-11-22 修回日期:2010-12-21 出版日期:2011-03-10 发布日期:2011-02-23
  • 通讯作者: 车顺爱 E-mail:chesa@sjtu.edu.cn
  • 基金资助:

    国家“九七三”计划项目(批准号： 2009CB930403)和国家自然科学基金(批准号： 20890121, 20821140537)资助.

Amino Acid Bifunctionalized Mesoporous Silica Nanoparticles with Controllable Particle Size and Dispersibility

WANG Yu, HAN Lu,  CHE Shun-Ai*   

  1. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University,  Shanghai 200240,   China
  • Received:2010-11-22 Revised:2010-12-21 Online:2011-03-10 Published:2011-02-23
  • Contact: CHE Shun-Ai E-mail:chesa@sjtu.edu.cn
  • Supported by:

    国家“九七三”计划项目(批准号： 2009CB930403)和国家自然科学基金(批准号： 20890121, 20821140537)资助.

PDF (PC)

被引次数

10

摘要： 通过表面活性剂，共结构导向剂（CSDAs）和硅源的自组装合成了具有分散性的不同粒径氨基酸双功能化介孔二氧化硅纳米颗粒. 通过表面活性剂头部与带相反电荷的CSDAs之间的静电相互作用使氨基和羧基基团均匀排列在介孔孔道表面. 通过调节助溶剂或分散剂的加入量来控制颗粒粒径，调节合成溶液pH改变纳米颗粒表面羧基和氨基基团的电荷切换性及其量来控制颗粒的分散性.

关键词: Amino acid, Mesoporous, Nanoparticle, Dispersibility, CSDA

Abstract: Amino acid bifunctionalized mesoporous silica nanoparticles with controllable particle size and dispersibility were synthesized via the cooperative self-assembly of surfactants, co-structure-directing agents (CSDAs), and a silica source. Uniform distributions of acid and base organic groups on the mesopore surfaces were formed by interactions between the counter charged surfactant head groups and ionic parts of CSDAs. The particle size has been well tuned with different amount of co-solvent or dispersant, while the dispersibility of the bifunctionalized mesoporous nanoparticles have been achieved through changing the pH of the solution to convert the chargement between cationic ammonio-anionic carboxylate and to shift the electrostatic force between the nanoparticles.

Key words: Amino acid, Mesoporous, Nanoparticle, Dispersibility, CSDA

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