Abstract
Nickel complex-mediated polymerization reactions of symmetrically bis(chlorobenzoylated) o-terphenyls (1a and 1b) have successfully given fully aromatic polyketones, i.e., aromatic polyketones composed of only arylene and ketonic carbonyl units. Polymerization of unsymmetrically bis(chlorobenzoylated) o-terphenyl (1c) has also given fully aromatic polyketones bearing slightly higher molecular weight. On the other hand, copolymerization of symmetrical monomers 1a and 1b has afforded higher-molecular-weight fully aromatic polyketones, particularly in the polymerization of a 1:1 mixture of the monomers. The obtained fully aromatic polyketones have excellent thermal resistibility and enhanced solubility to organic solvents.
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