双邻位甲基取代的聚芳醚酮合成与表征

两种单体 2 ,2′ ,6 ,6′ 四甲基 4 ,4′ 二苯氧基二苯酮 (o M2 DPOBP)和 2 ,2′ ,6 ,6′ 四甲基 4 ,4′ 二苯氧基三苯二酮 (o M2 DPOTPDK) ,分别与对苯二甲酰氯 (TPC)和间苯二甲酰氯 (IPC)低温亲电溶液缩聚 ,合成了 4种含双邻位甲基侧基聚醚酮醚酮酮 (DM PEKEKK和DM PEKEKMK)及含双邻位甲基侧基聚醚酮酮醚酮酮 (DM PEKKEKK和DM PEKKEKMK)聚合物 .用FT IR、1 H NMR、DSC、TGA、WAXD等方法对聚合物进行了表征 ,研究了聚合物的溶解性能 .结果表明 ,该 4种聚合物具有较高的玻璃化转变温度 ,良好的热稳定性和优良的溶解性能 .

SYNTHESIS AND CHARACTERIZATION OF POLY(ARYL ETHER-KETONE)S CONTAINING BIS(O-Methyl) MOIETY

Four novel poly(aryl ether-ketone-ether-ketone-ketone)s (DM-PEKEKK,DM-PEKEKMK)and poly(aryl ether-ketone-ketone-ether-ketone-ketone)s (DM-PEKKEKK,DM-PEKKEMK),containing bis(o-methyl) moiety were prepared by electrophilic polycondensation of 2,2′,6,6′-tetramethyl-4,4′-diphenoxydiphenylketone (o-M 2DPOBP) or 2,2′,6,6′-tetramethyl-4,4′-diphenoxytriphenyldiketone (o-M 2DPOTPDK) and terephthaloyl chloride(TPC) or isophthaloyl chloride(IPC) in 1,2-dichloroethane and in the presence of AlCl 3 and DMF.The polymers were characterized by FT-IR,WAXD,DSC,1H-NMR,TGA and there solubility properties were tested.The results show that the polymers have high glass transition temperature,good thermostabilities and excellent solubilities.