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本工作用红外光谱、电子显微镜及凝胶渗透色谱表征了丙烯酸丁酯/丙烯酸离子聚合物(简称离聚体)的结构,并研究了离子含量及种类、中和当量比及分子量对离聚体的拉伸程度、伸长率、定伸强度、永久变形及表现交联度的影响。结果表明,在中和当量比为1.0—1.5、羧基含量为10—12 mol％,分子量高于30万时,离聚体的强伸性能最佳,永久变形最小;而离子种类与拉伸强度的关系为:Pb~(2+)>Na~+>K~+>Zn~(2+)>Ca~(2+)>Mn~(2+)。
In this work, the structure of butyl acrylate / acrylic acid ionomer (abbreviated as ionomer) was characterized by FTIR, SEM and gel permeation chromatography. The effects of ion content and species, neutralization equivalence ratio and molecular weight on ionomer The degree of elongation, elongation, elongation strength, permanent deformation and the impact of the performance of the degree of crosslinking. The results showed that when the neutralization equivalent ratio is 1.0-1.5, the carboxyl content is 10-12 mol% and the molecular weight is more than 300,000, the strong elongation property of the ionomer is the best, and the permanent deformation is the smallest. However, the ion species and the tensile strength The relationship is: Pb 2 + Na + K + Zn 2 + Ca 2+ + Mn 2+.