Synthesis And Properties Of Novel Soluble Poly(Aryl Ether Ketone)s

From three aromatic ether monomers：4,4’-bis(-naphthoxy) phenyl sulfone(DNODPS),4,4’-bis(-naphthoxy)benzophenone(DNOBPN),9,9-bis(4-pheno xyphen-yl) fluorene(BPOPF), we synthesized two new types of soluble poly(aryl etherketone)s by electrophilic polycondensation with various aromatic diacid dichlorides.1. A series of novel poly(aryl ether ketone)s with1,4’-naphthalene moieties wereprepared from4,4’-bis(-naphthoxy) di phenylsulfone and4,4’-bis(-naphthoxy)benzophenone(DNOBPN) by electrophilic polycondensation with isophthaloylchloride, terephthaloyl chloride and1,4’-naphthalene dicarboxylic acid dichloride.The structures and properties of the polymers were investigated by FT-IR, TG,DSC, XRD, GPC etc. The results showed that the polymers were soluble incommon organic solvents such as N-methyl-pyrrolidone (NMP), N, N-dimeth-ylacetamide (DMAc), and CHCl3at room temperature. The polymers had notonly high Tgs of200-254℃, but also high Tds of487-523℃.2. A series of novel poly(aryl ether ketone)s with pendant fluorene groups wereprepared from9,9-bis(4-phenoxylphenyl)fluorene with various aromatic diaciddichlorides such as isophthaloyl chloride, terephthaloyl chloride,1,4’-naphthalenedicarboxylic acid dichloride by electrophilic polycondensation. The structures andproperties of the polymers were investigated by FT-IR, TG, DSC, XRD, GPC etc.The results showed that the polymers were soluble in common organic solventssuch as N-methyl-pyrrolidone (NMP), N, N-dimethylacetamide (DMAc), andCHCl3at room temperature. The polymers had not only high Tgs of228-300℃,but also high Tds of491-542℃.