Micro and nano-sized polysiloxanes containing ...
|Title||Micro and nano-sized polysiloxanes containing organoiron moieties.|
|Author(s)||Alaa S. Abd-El-Aziz, Diana J. Winram, Patrick O. Shipman, Sibel Sezgin Dalgakiran, Paul Shipley, Lukas Bichler, Brian Patrick|
|Journal||New Journal of Chemistry,|
|Abstract||Utilizing organoiron-mediated nucleophilic arom. substitution, a no. of allylamine-contg. organoiron complexes were prepd. Amide formation between 1,1'-ferrocene dicarbonyl chloride and allylamine produced a similar ferrocene compd. These materials were subjected to hydrosilation with methyldiethoxyhydrosilane to generate cationic organoiron siloxanes and ferrocene-contg. siloxane complexes. Electrochem. anal. of the allylamine and siloxane complexes showed redox couples characteristic of nitrogen-substituted arene-coordinated cyclopentadienyliron complexes. In situ cleavage of the ethoxy groups followed by the addn. of H2SO4 resulted in the formation of polymeric materials. Thermal anal. revealed that the cationic organoiron moieties decompd. between 200 Â°C and 250 Â°C, whereas the ferrocene moiety decompd. at 110 Â°C and the backbones of the polymers began to decomp. above 400 Â°C. The polymers displayed glass transition temps. between 68 Â°C and 111 Â°C. SEM showed that the polymers possessed very different morphologies, ranging from particulates to cryst. [on SciFinder(R)]|
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