Determination of Mr and Its Distribution of Polyaryloxyphosphazene by GPC Method

The method for determining relative molecular mass(M r) and its distribution of polyaryloxyphosphazene by gel permeation chromatography(GPC) method was established using the mono-dispersed polystyrene as standard sample. The experimental conditions were confirmed through experiment study. The different batch samples of polyaryloxyphosphazene were tested, and the repeatability of the experiments was investigated. The experiment results show that this method has high accuracy and good repeatability, is favorable to study the properties of polyaryloxyphosphazene, and provides the basis for controlling and adjusting the polymerization reaction process conditions.