and a molecular weight of (14-24.4)- (14-24,4)·106. The acid is prepared by polymerization of acrylic acid in water at 20-40 C in the presence of a Co3+-glycine redox system at a Co3+ concentration of (0.1-1.5): (0,1-1,5)·10-3 g·eq/l g eq/l and a glycine concentration of (0.2-15.0)(0,2-15,0)·10-3 mole/l mole/g at their molar ratio of 1:1-20, respectively, and at an acrylic acid concentration of 20-30 wt % and pH of 1.7-1.85. EFFECT: improved properties of the polyacrylic acid and greater efficiency of the process. 3 cl, 2 tbl"/>
公开/公告号RU2024550C1
专利类型
公开/公告日1994-12-15
原文格式PDF
申请/专利号SU19914903779
发明设计人 LYUBINA SARRA YA;KURLYANKINA VALENTINA I;KIPPER ALBERT I;KRAUS INNA P;KLENIN STANISLAV I;REPNITSKAYA OLGA A;KHLEBOSOLOVA ELENA N;MOLOTKOV VALENTIN A;SHISHKINA GENRIETTA V;
申请日1991-01-22
分类号C08F120/06;
国家 RU
入库时间 2022-08-22 04:10:40