含叔丁基可溶性芳香聚酰胺的制备及其性能研究  

Synthesis and Properties of Soluble Aromatic Polyamides Containing Tert-Butyl

作　　者：仇国全 陈焙才 黄孝华[1] 刘婵娟[1] 韦春[1] 

机构地区：[1]桂林理工大学材料科学与工程学院,广西有色金属及特色材料加工国家重点实验室培育基地,广西桂林541004

出　　处：《功能高分子学报》2017年第1期116-120,共5页Journal of Functional Polymers

基　　金：国家自然科学基金资助项目(51563005);广西自然科学基金资助项目(2014GXNSFAA118040,2016GXNSFBA380009);广西有色金属及特色材料加工重点实验室开放课题(13KF-3,14KF-8)

摘　　要：采用含叔丁基二胺的单体3,3′-二叔丁基-4,4′-二氨基二苯基-4″-叔丁基苯基甲烷(TADBP)分别与萘-1,4-二甲酸、间苯二甲酸和4,4-二苯醚二甲酸3种二酸单体通过Yamazaki膦酰化法缩聚制得一系列新型可溶性芳香聚酰胺(PA)。通过FT-IR、~1 H-NMR、TG、DSC等测试手段研究了含叔丁基芳香聚酰胺的结构与性能,以及聚合物结构对其溶解性能、热性能的影响。结果表明:PA具有优异的溶解性能,常温下不仅能溶于高沸点的N-甲基吡咯烷酮(NMP)、N,N-二甲基乙酰胺(DMAc)、N,N-二甲基甲酰胺(DMF)、二甲基亚砜(DMSO)等强极性溶剂中,加热条件下甚至能溶于四氢呋喃、氯仿、二氯甲烷等低沸点溶剂;同时,PA还具有良好的热性能,玻璃化转变温度(Tg)为188~193℃,氮气氛围下失重5%和10%时的热失重温度分别为391~416℃和404~437℃。A series of soluble aromatic polyamides（PA）were prepared using diamine monomer 3,3′-ditertbutyl-4,4′-diaminodiphenyl-4″-tertbutylphenylmethane（TADBP）and three aromatic dicarboxylic acids by Yamazaki phosphorylating method.The structures and properties of PA were studied by FTIR,^1 H-NMR,TG and DSC.Results show that these polymers have good solubility in high-boiling organic solvents at room temperature,such as N,N-dimethylformamide（DMF）,N,N-dimethylacetamide（DMAc）,N-methyl-2-pyrrolidone（NMP）and dimethyl sulfoxide（DMSO）.Moreover,they can be dissolved in lowboiling solvents under heating,such as tetrahydrofuran,chloroform,methylene chloride.Furthermore,they have outstanding thermal properties with the glass transition temperature（Tg）in the range of 188-193℃,as well as T5% and T10% mass loss temperature ranges of 391-416℃and 404-437℃in nitrogen atmosphere.

关 键 词：芳香聚酰胺 可溶性 热稳定性 叔丁基 膦酰化法 

分 类 号：O633.22[理学—高分子化学]