Synthesis and Characterization of Thio- or Carboxyl-containing Dendritic Derivatives

• Main Authors: Jing-Hwa Lin, 林靜華
• Other Authors: Long-Li Lai
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/30522152337528005232

碩士 === 國立暨南國際大學 === 應用化學系 === 96 === A series of dendrimer (GnNH, n=1, 2, 3, 4), using triazine as central cores and dioctylamine as terminal functionalitie were prepared by a convergent method. Two functional dendrimers (GnSH and GnCOOH) were prepared by reaction of terminal linking group of GnNH with gamma-thiobutyrolacton or maleic anhydride. Using Brust’s two phase (water-toluene) reduction of AuCl4- by sodium borohydrid in the presence of a mercapto-containing dendrimer, solutions of gold nanoparticle bearing a surface coating of mercapto-containing dendrimer have been prepared. By TEM (Transmission Electron Microscopy) analyses, the nanoparticle diameters were measured to be 3~5 nm approximately. By POM (Polarized Optical Microscope) analyses, all carboxyl-containing dendrimer does not show any mesogenic phase. Also, hydrogen bonding complexes from carboxyl-containing dendrimer and eight different porton acceptors does not show any mesogenic phase.