Synthesis and polymerization of a four-arm star with ...
|Title||Synthesis and polymerization of a four-arm star with pendent cyclopentadienyliron moieties.|
|Author(s)||A. Abd-El-Aziz, N. Pereira, D. Winram, P. Sidhu, S. Kroeker|
|Journal||Section Title: Chemistry of Synthetic High Polymers, Journal of Inorganic and Organometallic Polymers and Materials|
|Abstract||The synthesis of the title complex was achieved via the reaction of a Î·6-p-dichlorobenzene-Î·5-cyclopentadienyliron cation with an org. four-arm core to produce the tetrairon complex. This tetrairon-contg. core was subsequently polymd. via nucleophilic arom. substitution with various dinucelophiles such as 4,4'-thiobenzenethiol, bisphenol-A, 4,4'-(1-phenylethylidene)bisphenol, 4,4'-biphenol, bis(4-hydroxyphenyl)methane, producing five different crosslinked cationic organoiron polymers. Another cross-linked polymer was produced via direct polymn. of the four-arm org. core with the Î·6-p-dichlorobenzene-Î·5-cyclopentadienyliron cation. Due to the poor soly. of these cross-linked polymers, solid-state 13C CPMAS NMR was performed to verify that polymn. was successful. Thermogravimetric anal. (TGA) revealed that following the decoordination of the cyclopentadienyliron moieties, the polymers were thermally stable. Differential scanning calorimetry (DSC) showed that the polymers exhibited glass transition temps. (Tg's) ranging from 104 to 146Â°. [on SciFinder(R)]|
Using APA 6th Edition citation style.
Times viewed: 81