丙烯酸树脂的分子量测试及表征的影响因素研究

Study On Influencing Factors of Testing and Characterization of Acrylic Resins Molecular Weight

分子量对丙烯酸树脂的性能影响很大,凝胶渗透色谱是目前测试聚合物分子量最快速有效的方法。文章用凝胶渗透色谱法测定了丙烯酸树脂分子量及其分布,并考察了流动相、流速、温度及进样浓度等操作条件对聚丙烯酸树脂分子量及其分布的测试结果的影响。

Molecular Weight is very important to the properties of acrylic resin; gel permeation chromatography method is easy to operate, with high sensitivity, which is suitable for the molecular weight and its distribution determination of polymer. Determination of molecular weight and its distribution of acrylic resin have been studied by using gel chromatography, and through investigating the effect of operational conditions which includes mobile phase, flow rate, column temperature, and concentration of sample on the determination of molecular weight and its distribution.