Abstract
KF or a mixture of KF and N-neopentyl-4-(dialkylamino)-pyridinium chlorides were used as catalysts to improve poly(ether ketone) syntheses of dichloroaryl monomers such as 1,4-bis(4-chlorobenzoyl)benzene (1) via nucleophilic displacement. Polymers of increased molecular weight within a significantly reduced reaction time can be obtained by this method, as demonstrated with condensations of 2,2-bis(4-hydroxyphenyl)pentane (4) or 2,2-bis(4-hydroxyphenyl)heptane (5) with 1. Furthermore, high molecular weight semicrystalline poly(ether ether ketone)s, commonly known as PEEKK, were synthesized by fluoride anion assisted polycondensation of 1
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