二种双邻位甲基取代的聚芳醚酮类树脂的合成与性能

The synthesis and properties of two kinds of poly aryl ether ketone containing o-methyl moiety

合成二种双邻位甲基取代的聚芳醚酮类聚合物,聚芳醚酮醚酮酮(DM-PEKEKK)和聚芳醚酮酮醚酮酮(DM-PEKKEKK),用FT-IR、1HNMR、DSC、WAXD、TG等技术对其进行表征,研究表明:较之于未取代的PEKEKK和PEKKEKK玻璃化转变温度和溶解性能大幅度提高,热分解温度有所下降,但均在450℃以上。

Poly（aryl ether ketone ether ketone ketone） and poly （aryl ether ketone ketone ether ketone ketone） containning o- methyl moiety（ DM- PEKEKK and DM- PEKKEKK） were synthesized according to Chen Lie et al. These polymer were charac- terized by FT- IR, IH NMR, WAXD and DSC etc. The results show that DM - PEKEKK and DM - PEKKEKK have higher glass transition temperature（Tg）,better solubility than PEKEKK and PEKKEKK.