含间甲基取代杂萘联苯结构共聚芳酰胺的合成与性能  

SYNTHESIS AND PROPERTIES OF COPOLYAMIDES FROM MM-HPPZ/NDA/OBBA

作　　者：王沛[1] 刘建东[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：《高分子材料科学与工程》2006年第2期83-85,89,共4页Polymer Materials Science & Engineering

基　　金：国家863项目(2003AA33g030);国家自然科学基金资助项目(50143013)

摘　　要：以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-1-酮为单体,与2,6萘-二甲酸经溶液缩聚反应制备新型聚芳酰胺,以4,4二-苯醚二羧酸(OBBA)为第三单体对聚芳酰胺进行共缩聚改性,并研究了OBBA的含量及结构对聚芳酰胺性能的影响。当OBBA与NDA的摩尔配比为4∶6时共聚物黏度最大为1.82 dL/g。系列聚芳酰胺具有良好的溶解性,可溶于NM P、DM A c等极性非质子溶剂,玻璃化转变温度高于310℃,5%热失重温度大于445℃。A series of co-polyamides were prepared with the novel diamine 2-（4-aminophenyl）- 4-1-2-methyl-4-（4-aminophenoxy）-]-2, 3-phthalazin-l-one, 2, 6-naphthalene dicarboxylic acid （NDA） and 4,4 （-oxybis （benzoic acid） （OBBA） by the Yamazaki method and characterized by using FT-IR and 1H-NMR. The different mount effect of diacid monomers to the properties of copolymers were also studied. The polyamides obtained had high inherent viscosity of 1.13 dL/g～1.82 dL/g. The Tg values of the polyamides were 310 ℃～326 ℃, the 5% mass loss temperature were 446 ℃～451 ℃ and the residual mass at 800℃ in nitrogen atmosphere was more than 55%. The polyamides were soluble in polar aprotic solvents such as DMAc, DMF, NMP, DMSO, Py and m-Cresol. The polyamides can be used as high performance materials.

关 键 词：聚芳酰胺 杂萘联苯 共缩聚 溶解性 耐热性 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]