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Synthesis and characterization of novel polyimides containing triazoles units in the main chain by click chemistry

机译:通过点击化学合成和表征在主链中包含三唑单元的新型聚酰亚胺

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摘要

In this study, some polyimides containing triazoles units in the main chain was prepared from the polymerization of dialkynes including imide linkages and diazides in the presence of Cu (I) catalyst in yield of 76.2-87.6%, with inherent viscosity of 0.37-0.53 dL g ~(-1). The obtained polymers are soluble in polar aprotic solvents such as N,N-dimethyformamide (DMF), N,N-dimethyacetamide (DMAc), dimethyl sulfoxide (DMSO), and N-methyl-2- pyrrolidone (NMP). These polymers were characterized using FT-IR, 1H-NMR, and elemental analysis techniques. Their thermal stability was evaluated with thermogravimetric (TGA) analysis and differential scanning calorimetry (DSC) techniques under a nitrogen atmosphere which is indicative of their good thermal stability.
机译:在这项研究中,一些主链上含有三唑单元的聚酰亚胺是通过在Cu(I)催化剂存在下由包括酰亚胺键和二叠氮化物在内的二烯酮聚合制备的,产率为76.2-87.6%,比浓对数粘度为0.37-0.53 dL g〜(-1)。所获得的聚合物可溶于极性非质子溶剂,例如N,N-二甲基甲酰胺(DMF),N,N-二甲基乙酰胺(DMAc),二甲基亚砜(DMSO)和N-甲基-2-吡咯烷酮(NMP)。使用FT-IR,1H-NMR和元素分析技术对这些聚合物进行表征。在氮气氛下,通过热重(TGA)分析和差示扫描量热法(DSC)技术评估了它们的热稳定性,这表明它们具有良好的热稳定性。

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