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以丙二胺和对苯二胺作为共缩聚二胺单体,与双酚A型二醚酐在N,N-二甲基甲酰胺(DMF)中通过一步法,缩合聚合制得了9种系列新型PEI高分子聚合物。对聚合物的分子量、热性能及成膜后的透光性能进行了研究。实验结果表明,聚合物中二胺单体的摩尔配比对于聚合物的分子量、热性能及成膜后的透光性能有影响,随着对苯二胺在共聚二胺单体中配比的增加,聚合物的分子量逐渐增大,热性能优良,其薄膜制品的透光性能较佳。
Propylenediamine and p-phenylenediamine as co-condensation diamine monomer, and bisphenol A dianhydride anhydride in N, N-dimethylformamide (DMF) by one-step condensation polymerization made nine series New PEI polymer. The molecular weight, thermal properties and transparency of the films were studied. The experimental results show that the molar ratio of the diamine monomer in the polymer has an influence on the molecular weight, the thermal properties and the light transmittance after the film formation. As the ratio of the para-phenylenediamine in the copolymerized diamine monomer Increase, the molecular weight of the polymer is gradually increased, excellent thermal properties, the light transmittance of the film products better.