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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 2
BKCSDE 30(2)
February 20, 2009 

 
Title
Synthesis and Characterization of Poly(arylene-ethynylene)s with Ferrocene Unit by Reaction of 1,1'-Bis(ethynyldimethylsilyl)ferrocene and Aromatic Dihalides
Author
In Sook Lee, Chong Gu Lee, Young Woo Kwak*, Yeong Soon Gal
Keywords
Aromatic dihalides, 1,1´-Bis(ethynyldimethylsilyl)ferrocene, Coupling reaction, Poly(aryleneethynylene), Palladium catalyst
Abstract
New poly(arylene-ethynylene)s with silicon-containing ferrocene moiety in the polymer main chain were synthesized via the C-C bond forming reactions of 1,1´-bis(ethynyldimethylsilyl)ferrocene and various aromatic dihalides in high yields. The aromatic dihalides include 1,4-dibromobenzene, 4,4´-dibromobiphenyl, 9,10-dibromoanthracene, 2,5-dibromopyridine, 2,5-dibromothiophene, and 2,6-diiodo-4-nitroaniline. The polymer structures and properties were characterized by such instrumental methods as NMR (1H-, 13C-, and 29Si-), IR, UV-visible spectroscopies and TGA/DSC. The spectral data indicated that the present polymers have the regular alternating structure of 1,1´-bis(ethynyldimethylsilyl)ferrocenylene and arylene units. The resulting polymers were completely soluble in such organic solvents as methylene chloride, chloroform, benzene, chlorobenzene, and THF. The thermal behaviors of the resulting polymers were examined.
Page
309 - 314
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