含三苯基膦结构可溶性超支化聚芳醚酮的合成与表征  

Synthesis and Characterization of Hyperbranched Poly(ether ketone ketone)s with Triphenylphosphine Moiety

作　　者：李艳青[1] 唐旭东[1] 张家鹤[1] 陈晓婷[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300457

出　　处：《天津科技大学学报》2010年第4期41-43,78,共4页Journal of Tianjin University of Science & Technology

基　　金：国家自然科学基金资助项目(50203008)

摘　　要：以双(4–(对氟苯甲酰基)苯基)苯基氧化膦为A2单体,11,,1–三(4–羟基苯)乙烷为B3单体,通过A2+B3方法合成了含三苯基膦结构可溶性超支化聚芳醚酮(HPEKKs),有效地避免了凝胶化现象.通过改变A2/B3的比率改变HPEKKs的封端基团,并通过1H NMR和FTIR对其结构进行了表征.1H NMR测量羟基封端HPEKKs(HPEKK-OH)的支化度和氟原子封端的HPEKKs(HPEKK-F)支化度分别达到0.62和0.85.DSC测量HPEKK-OH和HPEKK-F的玻璃化转变温度分别为151℃和131℃.TGA测量HPEKKs在失重率为5%时热分解温度达到500℃以上.HPEKK-OH和HPEKK-F可以很好地溶解于N–甲基吡咯烷酮、N,N–二甲基乙酰胺和二甲基亚砜等多种有机溶剂.Triphenylphosphine-contained hyperbranched poly（ether ketone ketone）s（HPEKKs）were synthesized from bis[4-（4-fluorobenzoyl）-phenyl]phenylphosphine oxide（p-FPPPO）and 1,11,-tri（p-hydroxyphenyl）ethane（THPE）via an A2＋B3 method.The gelation was effectively avoided.The HPEKKs with different terminal groups were prepared by changing A2/B3 ratio.The structure of HPEKK was characterized by 1H NMR and FTIR.The degree of branching of hydroxyl-terminated HPEKK（HPEKK-OH）and fluoro-terminated HPEKK（HPEKK-F）deterimined by 1H NMR integretion were 0.62 and 0.85 respectively.The glass transition temperatures of HPEKK-OH and HPEKK-F were 151℃ and 131℃ respectively by DSC.Thermal decomposition temperatures of HPEKKs at 5% weight were found above 500℃ by TGA.HPEKK-OH and HPEKK-F were readily soluble in a variety of organic solventss,uch as NMP,DMAc,DMSO and so on.

关 键 词：A2+B3方法 超支化聚芳醚酮 可溶性 热稳定性 

分 类 号：O632.4[理学—高分子化学]