摘要
通过测定淀粉－丙烯酸接枝共聚物的接枝效率和吸水率，提出了一种以丙酮为溶剂，用电热套直接加热回流萃取均聚物代替常温搅拌萃取均聚物的方法．可使萃取时间从２４ｈ缩短到３～４ｈ，使分析速度提高６～８倍，该法同样适合于其它淀粉乙烯基共聚物的分析．
By determining the graft efficiency and the ram of absorbing water of starch-acrylic acid graftcopolymer, a method based on using acetone as a solvent to extract homopolymer by direct heating reflux with electric heating cover instead of stirring at normal temperature is presented.The method can shorten the time for extraction from 24h to 3-4h. The analytical speed can be increased by 6-8 times. Themethod can also adapt to the analysis of other starch and copolymer.
出处
《石油化工高等学校学报》
CAS
1996年第4期34-36,共3页
Journal of Petrochemical Universities
关键词
淀粉
丙烯酸
均聚物
接枝效率
Starch
Acrylic acid
Homopolymer
Graft efficiency
