含羧基聚芳醚腈的合成与表征  

Synthesis and Characterization of Poly(arylene ether nitrile)Containing Carboxyl Groups

作　　者：谢苗苗 孙明明[1] 刘彩召[1] 王磊[1] 张斌[1] 张绪刚[1] 李坚辉[1] 张锡文 肖永昌 XIE Miaomiao;SUN Mingming;LIU Caizhao;WANG Lei;ZHANG Bin;ZHANG Xugang;LI Jianhui;ZHANG Xiwen;XIAO Yongchang(Institute of Petrochemistry,Heilongjiang Academy of Sciences,Harbin 150040,China)

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040

出　　处：《化学与粘合》2022年第6期487-490,516,共5页Chemistry and Adhesion

摘　　要：以双酚A、2,6-二氯苯甲腈、2,6-二氯苯甲酸为原料,通过亲核取代反应合成了一系列不同相对分子质量的含羧基的聚芳醚腈(CPENs),并通过红外光谱分析(FT-IR)表征了其结构,通过凝胶渗透色谱分析(GPC)检测了其相对分子质量的变化,合成了数均相对分子质量约为10~20kg/mol的系列CPENs;用差示扫描量热分析(DSC)、热重分析(TGA)等考察了CPENs热性能的变化,CPENs的玻璃化转变温度随着相对分子质量变大,从107℃增加到153℃,热分解温度均在370℃以上,表现出良好的热性能。在常见溶剂中测试了CPENs的溶解性,发现CPENs在乙酸乙酯、丙酮、甲苯、氯仿以及一些极性溶剂中都有良好的溶解性。A series of poly(arylene ether nitriles)containing carboxyl groups(CPENs)with different molecular weights are synthesized through nucleophilic substitution reaction using bisphenol-A,2,6-dichlorobenzonitrile and 2,6-dichlorobenzoic acid as raw materials.The structures of CPENs are characterized with the Fourier transform infrared spectra(FT-IR),and the molecular weights variations of CPENs are measured by the gel permeation chromatography(GPC),and the number-average molecular weight of the synthesized CPENs is about 10~20kg/mol.The thermal properties of CPENs are analyzed by differential scanning calorimetry(DSC)and thermogravimetric analysis(TGA).The glass transition temperature of CPENs increases from 107°C to 153°C with the increase of molecular weight,and the thermal decomposition temperature is above 370°C,which indicates that the CPENs have good thermal properties.And the solubility of CPENs is tested in common solvents,it is found that the CPENs have a good solubility in the ethyl acetate,acetone,toluene,chloroform and some polar solvents.

关 键 词：聚芳醚腈 羧基 溶解性 耐热性 

分 类 号：O632.62[理学—高分子化学]