GAO Yan, JIAN Xigao, XUAN Yingnan, XU Zhiyong, SHANG Lei, CUI Yuhui. SYNTHESIS AND CHARACTERIZATION OF REACTIVE COPOLY(ETHER KETONE KETONE) AND ITS CYCLIZING PRODUCT[J]. Acta Polymerica Sinica, 2001,(3):403-407.
GAO Yan, JIAN Xigao, XUAN Yingnan, XU Zhiyong, SHANG Lei, CUI Yuhui. SYNTHESIS AND CHARACTERIZATION OF REACTIVE COPOLY(ETHER KETONE KETONE) AND ITS CYCLIZING PRODUCT[J]. Acta Polymerica Sinica, 2001,(3):403-407.DOI:
A new copoly(ether ketone ketone)(NPEKK)has been synthesized from 4
5-bis(4-fluorobenzoyl)-l-methylcyclohexene
4-(4-hydroxyphenyl)-2
3-phthalazin-l-one and 2
2-p-hydroxyphenyl一iso-propane via nucleo-philic polycondensation reaction.The ring-closing reaction of NPEKK with hydrazine gives the cyclizing product CNPEKK.The new polymers have been studied with FT-IR.DSC and TGA.It has been proved that the synthesized poly(ether ketone ketone)s is very soluble in many organic solvents
thermal stable and have good tensile properties.While