基于一种新型含菲并咪唑基二胺单体的聚酰亚胺的合成与性能  

Synthesis and property of PI derived from an novel diamine monomer containing phenanthroimidazole ring

作　　者：孔德禄 郭晓霞[1] Pradip Kumar Tapaswi Chang-Sik Ha 张崇印 房建华[1] Kong Delu;Guo Xiaoxia;Pradip Kumar Tapaswi;Chang-Sik Ha;Zhang Chongyin;Fang Jianhua(School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240;Department of Polymer Science and Engineering,School of Chemical Engineering,Pusan National University,Busan 46241,South Korea;Narasinha Dutt College,University of Calcutta,Kolkata 711101,India;Shanghai Aerospace Equipments Manufacturer Co.,Ltd.,Shanghai Engineering Research Center of Specialized Polymer Materials for Aerospace,Shanghai 200245)

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]Department of Polymer Science and Engineering,School of Chemical Engineering,Pusan National University,Busan 46241,South Korea [3]Narasinha Dutt College,University of Calcutta,Kolkata 711101,India [4]上海航天设备制造总厂有限公司,上海航天特种环境高分子功能材料工程技术研究中心,上海200245

出　　处：《化工新型材料》2022年第4期66-71,76,共7页New Chemical Materials

基　　金：国家“973”计划项目(2014CB643600);National Research Foundation of Korea(韩国研究财团)funded by the Ministry of Science and ICT,Korea(韩国,科学技术情报通信部)(NRF-2017R1A2B3012961;Brain Korea 21Four Program)。

摘　　要：通过三步反应合成了一种新型具有高度扭曲构型的芳香二胺单体1,2-双(4-(4-氨基-2-三氟甲基苯氧基)苯基)-菲并[9,10-d]咪唑(PIPOTFA),将它与四种商业化二酐4,4'-六氟异丙基邻苯二甲酸酐(6FDA)、3,3',4,4'-二苯醚四甲酸二酐(ODPA)、3,3',4,4'-联苯四甲酸二酐(BPDA)和3,3',4,4'-二苯甲酮四甲酸二酐(BTDA)通过高温一步法聚合制得了四种聚酰亚胺均聚物。这些聚酰亚胺在N-甲基吡咯烷酮(NMP)、N,N-二甲基乙酰胺(DMAc)和N,N-二甲基甲酰胺(DMF)等非质子极性溶剂中均具有良好的溶解性。热分析测试结果表明,这些聚酰亚胺具有优异的热稳定性,其玻璃化转变温度在265~290℃之间,氮气气氛下5%和10%热失重温度分别为517~561℃和547~587℃,700℃时的残炭率为60%~70%。这些聚酰亚胺薄膜呈淡黄色,在450nm处的透过率为11%~68%,截止波长为375~383nm。A highly twisted aromatic diamine monomer,1,2-bis(4-(4-amino)-2-trifluoromethylphenoxy)phenyl)-phenanthro[9,10-d]imidazole(PIPOTFA),was synthesized through three-step reactions.Novel polyimide(PI)was synthesized by condensation polymerization of the PIPOTFA with four commercial dianhydride monomers,4,4'-(hexafluoroisopropylidene)diphthalic anhydride(6FDA),4,4'-oxydiphthalic anhydride(ODPA),3,3',4,4'-biphenyltetracarboxylic dianhydride(BPDA)and 3,3',4,4'-benzophenonetetracarboxylic dianhydride(BTDA)through one-step high-temperature condensation polymerization method.The resulting PI was well soluble in common aprotic polar solvent such as N-methylpyrrolidone(NMP),N,N-dimethylacetamide(DMAc),and N,N-dimethylformamide(DMF).Thermal analysis test results revealed that the PI had excellent thermal stability.The glass transition temperatures(Tg)of the PI were around 265~290℃,and the 5%and 10%thermal weight loss temperatures in nitrogen were in the range 517~561℃and 547~587℃,respectively.Moreover,the char yields were as high as 60%~70%at 700℃in nitrogen.These PI films appeared pale yellowish color and the transmittance values at 450nm were in the range 11%~68%,while the cut-off wavelength(λ0)values were around 375~383nm.

关 键 词：聚酰亚胺 热稳定性 溶解性 

分 类 号：O63[理学—高分子化学]