芳香聚酰胺的侧链取代及溶解性能研究

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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.

Polyamide PA1 and PA2 were 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 PA2 for the structure modification in five different proportion, then different ratio of the n-butyl replaced n-Bu -PAlandn-Bu -PA2 were obtained and characterized by FT - IRH 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 : 1bromobutane was 1 : 1,and the reaction molar ratio of PA2 : 1-bromobutane was 1 : 2,the modified products n-Bu -PAlan"-Bu-PA2 showed good solubility in DMAc, DMSO and DMF.

作者:

郁有祝 郭玉华 王芳 牛永生 邱明艳 石蔚云 魏亚辉

Yu Youzhu Guo Yuhua Wang Fang Niu Yongsheng Qiu Mingyan Shi Weiyun Wei Yahui(College of Chemistry and Environmental Engineering, Anyang Inst itute of Technology, Anyang 455000, Chin)

机构地区:

安阳工学院化学与环境工程学院

出处:

《betway官方app 学报:自然科学版》 CAS 北大核心 2017年第4期57-61,共5页

基金:

国家自然科学基金(21302003) 河南省高等学校重点科研项目(16A150001) 安阳工学院院科研基金项目(YJJ2015008)

关键词:

芳二胺 聚酰胺 溶解性 改性 1-溴丁烷

aromatic diamine polyamide solubility 1 - bromobutane modification

分类号:

TQ316.4 [化学工程—高聚物工业]


芳香聚酰胺的侧链取代及溶解性能研究.pdf

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