Mg. Zolotukhin et al., SYNTHESIS OF XY-1,4-PHENYLENE-CARBONYL-1,3-PHENYLENE-CARBONYL)S (M-PEKK) BY PRECIPITATION POLYCONDENSATION, Pure and applied chemistry, A32, 1995, pp. 897-905
High molecular weight m-substituted poly(ether ketone-ketone) has been
synthesized by electrophilic precipitation polycondensation via two d
ifferent ways: reaction of isophthaloyl chloride with diphenyl ether a
nd reaction of isophthaloyl chloride with 1,3-bis(4-phenoxybenzoyl)ben
zene. The second way of synthesis was found to give structurally more
perfect polymers with higher molecular weights. In both cases polycond
ensation proceeded with precipitation of the polymers formed as unifor
m particles. The influence of reaction conditions has been studied. Mo
nomer concentration and monomer stoichiometric ratio were shown to aff
ect the polymer properties.