指示剂测定在丙烯酸与三元异丙胶接枝率的应用

INDICATORS′ APPLICATION IN THE DETERMINATION OF THE POLYMERIZATION OF PROPENOIC ACID AND EPDM

对非水滴定法测定丙烯酸接枝三元异丙胶 (EPDM)的接枝率的指示剂进行了选择试验。结果表明 ,测定一定的接枝物应选用一定的指示剂。利用本文给出的方法测定丙烯酸与三元异丙胶 (EPDM)的接枝率 ,方法简便、可行 ,结果准确。

The best indicator of titration in nonaqueous solvent for determinating the polymerization of propenoic acid and EPDM were selected by experiments.It was found that the different indicator should be used for different high polymerization.The method given in this paper to measure the proportion of propenoic acid and EPDM is simple,possible,convenient and with good results.