| 芳香聚酰胺的侧链取代及溶解性能研究 |
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| 作者单位： | ;1.安阳工学院化学与环境工程学院 |
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| 摘 要： | 以4,4’-二氨基二苯醚和4,4’-二氨基二苯甲烷两种芳二胺分别与对苯二甲酰氯反应得到聚酰胺PA1和PA2,为提高其溶解性,通过1-溴丁烷分别对PA1和PA2进行了5个不同摩尔配比的结构改性实验,得到了不同丁基取代比例的n-Bu-PA1和n-Bu-PA2,并对其进行了红外光谱、核磁共振氢谱、紫外光谱和X射线衍射等结构和热稳定性分析.PA1,n-Bu-PA1,PA2和n-Bu-PA2热稳定性较好.当摩尔配比PA1∶1-溴丁烷=1∶1,PA2∶1-溴丁烷=1∶2反应得到的改性聚酰胺在N,N-二甲基乙酰胺(DMAc)、二甲亚砜(DMSO)和N,N-二甲基甲酰胺(DMF)中均具有良好的溶解性.
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| 关 键 词： | 芳二胺 聚酰胺 溶解性 改性 1-溴丁烷 |
Side-chain Substitution Reaction and Solvability of Aromatic Polyamide |
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| Institution: | ,College of Chemistry and Environmental Engineering,Anyang Institute of Technology |
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| Abstract: | Polyamide PA1 and PA2were respectively synthesized via the reaction of 4,4'-oxybisbenzenamine and 4,4'-diaminodiphenylmethane with 1,4-benzenedicarbonyl chloride.In order to improve the solubility of PA1 and PA2,1-bromobutane was selected as the reagent to react with PA1 and PA2for the structure modification in five different proportion,then different ratio of the n-butyl replaced n-Bu-PA1 and n-Bu-PA2 were obtained and characterized by FT-IR,1 H NMR,UV spectra and XRD.PA1,n-Bu-PA1,PA2 and n-Bu-PA2 have good thermal stability.When the reaction molar ratio of PA1∶1-bromobutane was 1∶1,and the reaction molar ratio of PA2∶1-bromobutane was 1∶2,the modified products n-Bu-PA1 and n-Bu-PA2 showed good solubility in DMAc,DMSO and DMF. |
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| Keywords: | aromatic diamine polyamide solubility 1-bromobutane modification |
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