SYNTHESIS OF POLY(DIHALOPHENYLENE OXIDE)S BY SOLID-STATE THERMAL-DECOMPOSITION OF MANGANESE PHENOLATE COMPLEXES WITH ETHYLENEDIAMINE LIGAND

The synthesis of poly(dihalophenylene oxide)s by solid-state thermal d ecomposition of manganese phenolate complexes with ethylenediamine lig and was achieved. The complexes were characterized by infrared (IR) sp ectroscopy and C, H, N elemental analysis. The dependence of the yield of polymers on temperature and decomposition time of the manganese co mplexes with 2,4,6-trichlorophenol, 2,4,6-tribromophenol and 2,6-dibro mo-4-chlorophenol was investigated. The polymers obtained were charact erized by H-1 NMR, IR spectroscopy and differential scanning calorimet ry and found to be branched. 1,2-Catenation is favoured over 1,4-addit ion in 2,4,6-tribromophenoxide and 2,6-dibromo-4-chlorophenoxide deriv ed polymers, however, polymers synthesized from trichlorophenolate dis play a selectivity in favour of 1,2-catenation.