CAJ | 학술논문

在无水 AlCl3及 N-甲基吡咯烷酮(NMP)存在下,以四氯对苯二甲酰氯(TCTPC)为第三单体,将其与二苯醚(DPE)和对苯二甲酰氯(TPC)在1,2-二氯乙烷中进行低温溶液共缩聚反应,合成了一系列聚芳醚酮酮/多氯取代聚芳醚酮酮(PEKK/C-PEKK)无规共聚物,并用 FT-IR、DSC、TG 及WAXD等对其结构和性能进行了表征.结果表明共聚物具有优异的耐热性能,其玻璃化转变温度(Tg)比纯 PEKK 更高,且随共聚物中多氯取代 PEKK 结构单元含量的增加而增加,而熔融温度(Tm)和结晶度(Xc)则逐渐降低.当多氯 PEKK 结构单元含量大于50(mol)%时,共聚物可溶解于氯仿及强极性的DMF、NMP等有机溶剂中.
재무수 AlCl3급 N-갑기필각완동(NMP)존재하,이사록대분이갑선록(TCTPC)위제삼단체,장기여이분미(DPE)화대분이갑선록(TPC)재1,2-이록을완중진행저온용액공축취반응,합성료일계렬취방미동동/다록취대취방미동동(PEKK/C-PEKK)무규공취물,병용 FT-IR、DSC、TG 급WAXD등대기결구화성능진행료표정.결과표명공취물구유우이적내열성능,기파리화전변온도(Tg)비순 PEKK 경고,차수공취물중다록취대 PEKK 결구단원함량적증가이증가,이용융온도(Tm)화결정도(Xc)칙축점강저.당다록 PEKK 결구단원함량대우50(mol)%시,공취물가용해우록방급강겁성적DMF、NMP등유궤용제중.
A series of poly(aryl ether ketone ketone)/polychloro substituted poly(aryl ether ketone ketone) (PEKK/C-PEKK) copolymers have been prepared by low temperature solution polycondensation of tetrachloroterephthaloyl chloride, diphenyl ether and terephthaloyl chloride in 1,2-dichloroethane in the presence of AlCl3 and NMP. The copolymers have been characterized by FT-IR, DSC and WAXD, etc. The results showed that the copolymers exhibit excellent heat-resistance. Raising C-PEKK content in the copolymer increases the Tg, but decreases its Tm and crystallinity. The copolymer was soluble in CHCl3 and strongly polar organic solvents such as DMF, DMSO, NMP and THF at room temperature when the C-PEKK content is above 50(mol)%.