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用气相色谱法测定丙烯腈-丙烯酸甲酯在70℃下水相沉淀共聚合的竞聚率。测得r_1=0.60,r_2=1.18。由于改进了实验方法,使得计算方便,测定迅速,结果准确。
The reactivity ratio of acrylonitrile-methyl acrylate in water-phase precipitation copolymerization at 70 ℃ was determined by gas chromatography. Measured r_1 = 0.60, r_2 = 1.18. Due to the improvement of the experimental method, the calculation is convenient, the determination is rapid and the result is accurate.