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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 12
BKCSDE 30(12)
December 20, 2009 
 
Title
 Anionic Indicators on the Surface of Submicrospheres Consisting of Ionic Palladium(II) Complex
Author
 Cho Rong Kim, Tae Hwan Noh, Kyung Ho Yoo, Bok Ryul Yoo, Ok Sang Jung*
Keywords
 Amphiphilic properties, Ionic palladium(II) complex, Submicrosphere, Surface modification
Abstract
 Ionic palladium(II) complex, [(Me4en)Pd(L)]2(ClO4)4 (Me4en = N,N,N’,N’-tetramethylethylenediamine; L = bis- (4-(4-pyridylcarboxyl)phenyl)methane), allows to form a monodisperse submicrosphere without any template or additive. Surface-perchlorates on the submicrosphere have been exchanged by anionic pH indicators such as thymol blue, bromothymol blue, and bromocresol green. The ionic and amphiphilic properties of the palladium(II) complex appear to be primarily associated with the formation and easy surface-anion exchange of submicrosphere. The surface-anion exchange through the electrostatic interaction is a very good tool for the surface-modification. The color of the pH indicator-exchanged submicrospheres is very sensitive to pH and Hg2+ cation, and thus they are promising to submicrospherical indicators.
Page
 3057 - 3060
Full Text
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