两种新型溶致型液晶芳香聚酯酰胺的合成与表征  

Synthesis and Characttetization of Some New Soluble Liquid-Crystalline Aromatic Polyesteamides

作　　者：张广平[1] 彭光荣[1] 毕先同[1] 

机构地区：[1]中国科学院化学研究所,北京100080

出　　处：《功能高分子学报》1993年第3期211-217,共7页Journal of Functional Polymers

摘　　要：从单体4,4′-对苯二甲酸酯基二苯甲酰氯制备开始,合成了三种可在N-甲基吡咯烷酮(NMP)中溶解且特性粘数较高的溶致液晶芳香聚酯酰胺。其中酰氯单体与4,4′-二氨基二苯甲烷反应生成的聚酯酰胺粘度较高,其NMP溶液25℃下的特性粘数可达1.7dl/g。这种聚酯酰胺具有交替的酯、酰胺基结构,其NMP溶液浓度为15%时在偏光显微镜下可观察到明显的液晶双折射,并且可以刮板成膜。Starting with the synthesis of 4,4- (Terephthaloyldioxy) dibenzoyl chloride (TDC), we have got two new polyesteramides which are liquid-crysstalline and soluble in N-methyl pyrrolidone (NMP) and their properties have been characterized by Elemental analysis, IR, DSC and X-ray diffraction etc. Among these polymers, polyesteramide which is synthesizded by the reaction of TDC and 4, 4-diaminodiphenyl methane has the highest inherent viscosity, 1.7 dl / g. It has the structure of altenative esters and amides, and its 15% NMP solution can be made into film by being spread on the glass plate then dipped in water bath.

关 键 词：溶致性 液晶 芳香聚酯酰胺 缩聚 

分 类 号：O743.51[理学—晶体学]