低温溶液缩聚合成聚芳醚酮酮的研究

STUDY ON THE SYNTHESIS OF POLYAROMATIC ETHER KETONE KETONES BY LOW TEMPERATURE SOLUTION POLYCONDENSATION

低温溶液缩聚合成聚芳醚酮酮的研究宋才生，蔡明中，周丽云（江西师范大学化学系南昌３３００２７）关键词低温溶液缩聚，付一克或化反应，聚芳醚酮酮，二苯醚聚芳醚酮酮（ＰＥＫＫ）是一种新型的热塑性耐热高分子材料，具有优异的机械力学性能，耐溶剂抗化学腐蚀性能，抗...

igh molecular weight polyaromatic ether ketone ketones (PEKK) were prepared by low emperature solution polycondensation of diphenyl ether (DPE) and terephthaloyl chloride (TPC), isophthaloyl chloride (IPC) in presence of aluminum chloride, 1,2-dichloroethane and N,N-dimethylformamide (DMF). The effects of some factors on polycondensation were investigated. The copolymers were characterized by IR, X-ray diffraction DSC, TG, etc. It is shown that melting temperatures,glass transition temperatures, crystalline temperatures of PEKK products decrease with increasing of mole ratios of IPC to TPC. The PEKK prepared have good heat-resistance and excellent chemical-resistance.