摘要
本文建立了三元氯醋树脂中乙烯醇含量的化学分析方法,使用乙酸酐在吡啶的存在下对树脂进行酰基化,过量的酸酐水解后用氢氧化钾滴定。方法准确性好,精密度高,相对标准偏差为0.016。同时指出了另一种推算法与直接法有固定偏差,能够快速获得实验结果。
A quantitative chemical analysis for vinyl alcohol in VAGH resin was developed. The resin was acylated by acetic anhydride in the presence of pyridine; the excess acetic anhydride was titrated with a potassium hydroxide solution. The relative standard deviation of the method was 0. 016, the results were accurate and precise. Another method that calculate the content of vinyl alcohol was also ad- dressed; there was a fixed differential between the two methods and the latter was rapid than the former.
出处
《染料与染色》
CAS
2014年第1期59-60,39,共3页
Dyestuffs and Coloration
关键词
三元氯醋树脂
乙烯醇
化学分析
vinyl chloride-acetate-alcohol copolymer
vinyl alcohol
chemical analysis
