非水滴定和傅立叶红外光谱在聚丙烯马来酸酐接枝物表征中的应用

Application of Non-aqueous Titration and FTIR Spectroscopy in the Characterization of Maleic Anhydride-Functionalized Polypropylene

摘要: 采用非水滴定法中的无机碱直接滴定方法测定了马来酸酐在聚丙烯上的接枝率，并对该方法作了可行性验证，讨论了非水滴定中的两个难点：化学计量比的确定和滴定终点的判断。通过傅立叶红外光谱法(FTIR)对聚丙烯马来酸酐接枝物的纯化效果、自由基引发反应对非水滴定的影响及聚丙烯接枝马来酸酐的反应机理作了定性分析，并结合非水滴定的数据绘制了红外定量校准曲线。

Abstract: Non-aqueous titration and Fourier transform infrared spectroscopy (FTIR) were performed to characterize the PP grafted maleic anhydride (MAH). The amount of maleic anhydride grafted onto polypropylene was obtained by non-aqueous titration. Meanwhile some