【摘要】 合成了丙烯酸和丙烯酸钾均聚物及其共聚物。用FTIR谱仪测定了不同比例的聚丙烯酸和聚丙烯酸钾共混物中两种单体含量比,建立了标准工作曲线,得到了在低转化率下不同初始单体组成的共聚物中两种单体的含量。用FR和KT两种作图法及YBR计算法对单体的竞聚率进行计算和比较。结果表明,丙烯酸的竞聚率(r1)和丙烯酸钾的竞聚率(r2)分别为r1=0798,r2=0544。更多还原

【Abstract】 The homo polymer of acrylic acid and potassium acrylate as well as their copolymer were synthesized. FT IR spectroscopy was used to determine the two monomer molar ratios in the mixture of polyacrylic acid and polypotassium acrylate. The standard working curve was established to analyze the composition of copolymers. Reactivity ratios of monomers were evaluated by using FR, KT and YBR methods. The experimental results showed that the values for acrylic acid ( r 1) and potassium acrylate ( r 2) are r 1=0 798 and r 2=0 544, respectively.更多还原