A novel triphenylphosphine-contained poly(ether ether ketone ketone) was synthesized from bis[4-(p-fluorobenzoyl)-phenyl]phenylphosphine oxide and hydroquinone by nucleophilic copolycondensation with sulfolane as the solvent. The structure was confirmed via FTIR, 31P NMR and 1H NMR. Electrical property, mechanical property, heat-resistance property, flame resistance and solubility were also evaluated. The results show that the polymer has an excellent heat-resistance, the glass transition temperature(Tg) is 212.6 ℃. The 5% mass loss of the polymer in nitrogen atmosphere took place at 476 ℃. The polymer is soluble in many organic solvents, such as CH2Cl2, CHCl3, Cl2(CH)2Cl2, Cl(CH2)2Cl, DMF, and NMP at room temperature, the polymer possesses well film ability, good mechanics property, electrical property, and the LOI is 44 which indicates that it possesses an excellent flame retardancy.
A new kind of phosphorus-containing monomer bis（4-（p-fluorobenzoyl）phenyl）phenylphosphine oxide was synthesized first,then a poly（aryl ether ketone） containing phosphorus in the main ring was synthesized,derived from bis（4-（p-fluorobenzoyl）phenyl）phenylphosphine oxide and bisphenol-S by nucleophilic copolycondensation with the use of sulfolane as solvent.The structure was confirmed by FT-IR,（）31P-NMR and（）1H-NMR.Electrical property,mechanical property,heat-resistance property,combustion-resistance and solubility was also researched to know the influence of the containing of phosphorus.The results showed that the polymer have excellent heat-resistance,the glass transition temperature（Tg） was 235℃.The onset temperature taken at 5% weight loss of the polymer in nitrogen was 463℃.The polymer was soluble in CH2Cl2,CHCl3,Cl2（CH）2Cl2,Cl（CH2）2Cl and strongly polar organic solvents such as（N,N-dimethylformamide）（DMF）,N-methyl2pyrrolidone （NMP） at room temperature.
