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通过偏苯三甲酸酐制备 1,2 ,4-苯三甲酰氯 ,再以二苯醚 (DPE)、1,2 ,4-苯三甲酰氯 (TMAC)为单体 ,无水AlCl3 /二氯乙烷 (DCE) /N -甲基吡咯烷酮 (NMP)为催化剂溶剂体系 ,在Friedel-Crafts亲电聚合条件下合成了含羧基侧基的聚芳醚酮酮树脂 (PEKK) ,进行了耐溶剂性试验 ,测定了其酸值及粘度 ,同时利用X -射线衍射、IR、DSC、TG等分析技术研究了含羧基侧基的聚芳醚酮酮树脂 (PEKK)的结构和性能 .研究结果表明 :该聚合物是可溶性无规低聚物 ,聚合物含有羧基侧基 ,可望成为耐高温性能分离膜、离子交换树脂 ,同时可作为交联聚合物、接枝聚合物及其它特种高分子材料的中间体 ,而且通过二元或三元聚合来改变交联点、接枝点的密度 ,为进一步得到结构多样化与性能各异的聚芳醚酮酮提供一个良好的基础
The 1,2,4-benzenetricarboxylic acid chloride was prepared from trimellitic anhydride, and then diphenyl ether (DPE), 1,2,4-benzenetricarboxylic acid chloride (TMAC) as monomer and anhydrous AlCl3 / dichloroethane Poly (aryl ether ketone) resin (PEKK) with pendant carboxyl groups was synthesized by Friedel - Crafts electrophilic polymerization using DCE / NMP as solvent system. The solvent resistance test was carried out. The acid value and viscosity of the poly (aryl ether ketone ketone) resin (PEKK) with carboxyl groups were studied by X - ray diffraction, IR, DSC and TG techniques. The results show that the polymer Is a soluble random oligomer, the polymer contains carboxyl side groups, is expected to become a high temperature performance of the separation membrane, ion exchange resin, can also be used as cross-linked polymers, graft polymers and other specialty polymer intermediates, And by binary or ternary polymerization to change the cross-linking point, the density of the graft point, to provide a good foundation for further diversification and performance of polyaryletherketone ketone