Soluble polymethacrylates and polystyrenes ...
|Title||Soluble polymethacrylates and polystyrenes containing cationic cyclopentadienyliron moieties.|
|Author(s)||A. Abd-El-Aziz, E. Todd|
|Journal||Section Title: Chemistry of Synthetic High Polymers, Macromolecular Chemistry and Physics|
|Abstract||Cyclopentadienyliron coordinated chloroarenes were utilized to synthesize novel classes of cationic organoiron methacrylate and styrene monomers via metal-mediated nucleophilic arom. substitution reactions. These monomers were subsequently polymd. using a radical initiator to produce the corresponding organoiron polymers. Polymn. of olefin-contg. monomers contg. terminal chloroarene complexes was also achieved by reaction with dinucleophiles yielding organoiron-coordinated polyarom. ethers and ether-thioethers with pendent methacrylate or styrene moieties. These sol. polymers were subsequently crosslinked with a radical initiator, which resulted in the isolation of insol. networks. Cyclic voltammetric investigations of these polymers showed that the pendent cationic iron centers underwent reversible redn. Thermogravimetric anal. showed that the cyclopentadienyliron complexes were cleaved from the polymer backbones at approx. 200Â°C, however; depending on the architecture of the polymer backbones, their structural integrities held from 320 to 470Â°C. The solubilities of the polymethacrylates were much higher in comparison to polystyrene analogs and had wt. av. mol. wts. between 22 500 and 86 400 with polydispersities ranging from 1.4 to 2.6. The mol. wts. of the cationic organoiron polymers prepd. via nucleophilic arom. substitution polymn. ranged from 10 500 to 22 800 with polydispersities of 1.2 to 1.7. [on SciFinder(R)]|
Using APA 6th Edition citation style.
Times viewed: 72