Synthesis and characterization of aromatic poly(ether ketone)s containing cyclotriphosphazene units. II

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Abstract

A new monomer di(4-carboxyphenoxy) tetrakis(4-fluorophenoxy)cyclotriphosphazene 1 was synthesized in a two-step reaction sequence. The direct polycondensation of 1 and/or 4,4′-dicarboxydiphenylether with aromatic ethers was carried out in P2O5/methanesulfonic acid (Eaton's reagent) at 120°C for 3 h to give two series of aromatic poly(ether ketone)s containing cyclotriphosphazene units. The effect of the introduction of the cyclotriphosphazene group on the solubility and thermal properties of these polymers was discussed with relation to the cyclotriphosphazene contents.

Original languageEnglish
Pages (from-to)2300-2305
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume38
Issue number13
DOIs
Publication statusPublished - 1 Jul 2000

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