MM-HPPZ/DNA/TPA聚芳酰胺的合成与性能  

Synthesis of co-polyamides from MM-HPPZ/NDA/TPA

作　　者：刘建东[1] 王沛[1] 蹇锡高[1] 刘程[1] 李玉琦[1] 

机构地区：[1]大连理工大学高分子材料系,辽宁大连116012

出　　处：《合成树脂及塑料》2005年第3期54-57,共4页China Synthetic Resin and Plastics

基　　金：国家863项目(课题编号:2003AA33g030);国家自然科学基金(批准号:50143013)资助。

摘　　要：采用新型的含间甲基取代杂萘联苯结构的二胺2-(4-氨基苯基)-4-[2-甲基-4-(4-氨基苯氧基)]-2,3-二氮杂萘-I-酮为单体,与2,6-萘二甲酸(NDA)进行溶液缩聚制备了新型聚芳酰胺,以对苯二甲酸(TPA)为第三单体对聚芳酰胺进行了共缩聚改性,并研究了TPA的含量及结构对聚芳酰胺性能的影响。n(NDA)/n(TPA)为4∶6时,共聚物特性黏数最大为1.70dL/g。合成的聚芳酰胺具有良好的溶解性,可溶于N-甲基吡咯烷酮、N,N-二甲基乙酰胺等非质子极性溶剂中.玻璃化转变温度大于320℃,5%热失重温度大于435℃。A series of new co-polyaramides were prepared with the novel diamine 2-(4-aminophenyl)-4 - [2-methyl-4-(4-amino-phenoxy)]-2,3-phthalazin-1-one and 2,6-naphthadicarboxylic acid (NDA) as monomers. The resultant polyaramides were modified with taking terephthalic acid (TPA) as the third component via co-polycondensation. The effects of content and structure of TPA on properties of the polyaramides were studied. The inherent viscosity of the copolymer reached its maximum value 1.70 dL/g when the ratio of n(NDA) to n(TPA) was 4:6. The synthetic polyaramide possessed superior solubility and could be soluble in polar aprotic solvents such as N-methylpyrrolidone and N,N-dimethyl formamide. Its glass transition temperature and weight loss temperature was higher than 320°C and 435°C, respectively.

关 键 词：聚芳酰胺 TPA 性能 合成 NDA N-甲基吡咯烷酮 非质子极性溶剂 玻璃化转变温度 二甲基乙酰胺 氨基苯氧基 对苯二甲酸 氨基苯基 联苯结构 甲基取代 二氮杂萘 溶液缩聚 萘二甲酸 第三单体 特性黏数 失重温度 共缩聚 共聚物 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业] TQ323.4