含螺环结构的二胺及其聚酰亚胺的合成与性能

发布时间：2018-03-24 22:35

本文选题：聚酰亚胺　切入点：螺环结构　出处：《高分子材料科学与工程》2017年05期

【摘要】：首先,以双酚A和甲磺酸反应合成出3,3,3',3'-四甲基-6,6'-二羟基-1,1'-螺旋双茚满,然后与2-氯-5-硝基三氟甲苯反应得到3,3,3',3'-四甲基-6,6'-双[4-硝基-2-三氟甲基苯氧基]-1,1'-螺旋双茚满,最后在Pd/C-水合肼还原作用下得到3,3,3',3'-四甲基-6,6'-双[4-氨基-2-三氟甲基苯氧基]-1,1'-螺旋双茚满。采用上述二胺单体分别与1,2,3,4-环丁烷四酸二酐、均苯四甲酸二酐、联苯二酐、3,3',4,4'-二苯醚四酸二酐、3,3',4,4'-二苯酮四酸二酐和六氟二酐通过两步法制备出6种含螺环结构的聚酰亚胺(PI)。采用核磁、红外光谱、X射线衍射、紫外-可见光谱、热重分析、差示扫描量热分析和溶解性测试等手段表征了所得化合物和PI的结构与性能。研究结果表明,这些含螺环的PI主要表现为非晶结构和较大的分子链间距离,且具有良好的溶解性、光学性能和热性能。
[Abstract]:First of all, the reaction of bisphenol A and methylsulfonic acid was used to synthesize 3H ~ 3N ~ 3H _ 3N _ 3H _ 6N _ 6H _ 1H _ 1H _ 1O _ 1N _ 3H _ 2H _ 1O _ 1N _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3N _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3H _ 3N _ 3N _ 3H _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N _ 3N. Finally, under the reduction of PD / C- hydrated hydrazine, 3H _ (3) O _ (3) -tetramethyl -6N ~ (6) -bis [4-amino-2-trifluoromethylphenoxy] -1 ~ (-1) inhydrin was obtained. The above mentioned diamine monomer was used to react with 1 ~ (2) C ~ (-) -H _ (2) H _ (2) O _ (4) -4-cyclobutane tetracarboxylic anhydride respectively, and the dianhydride of phenyltetracarboxylic acid (PTAA) was used. Six kinds of polyimide dianhydride with snail ring structure were prepared by two-step method. Six kinds of polyimide dianhydride with snail ring structure were prepared by two-step method. The results were as follows: nuclear magnetic field, infrared X-ray diffraction, UV-Vis spectrum, thermogravimetric analysis (TGA), X-ray diffraction (XRD), UV-Vis spectrum and thermogravimetric analysis (TGA) were used to prepare six kinds of polyimide dianhydride with snail ring structure. The structure and properties of the compounds and Pi were characterized by differential scanning calorimetry (DSC) and solubility test. And it has good solubility, optical property and thermal property.
【作者单位】：辽宁科技大学化学工程学院;大连理工大学化工学院精细化工国家重点实验室碳素研究室;
【基金】：国家自然科学基金资助项目(21406102) 中国博士后基金(2014M560212) 辽宁省教育厅优秀人才项目(LJQ2015053)
【分类号】：O625.63;O633.2

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