Citation:
Ji Xiangling, Zhang Wanjin, Wu Shi, Na Hui, Wu Zhongwen. A KIND OF POLYETHERETHERKETONE KETONE CONTAINING DIPHENYL GROUP[J]. Chinese Journal of Applied Chemistry,
;1993, 10(6): 106-107.
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A kind of polyetheretherketone ketone has been prepared by copolyeondensation of 4,4'-diphenol,1,3-bis(4-fluorobenzoyl) benzene and 1,4-bis(4-fluorobenzoyl) benzene with alkali metal carbonates at 310~320℃ using diphenylsulphone as solvent. The copolymer has Tg=169℃,Tm=339℃, 2.5% weight loss at 555℃;tensile strength 68.5MPa and tensile modulus 0.915GPa.
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