| 摘要 |
FIELD: chemistry of polymers. ^ SUBSTANCE: invention describes polyelectrolytes synthesized by polymerization of (meth)acrylamide monomers quaternized (meth)acrylamide derivative, (meth)acrylic acid derivative and/or cationic monomers resistant to hydrolysis. Composition of polyelectrolytes is characterized by the following toxicity index: Fi = (Qtr-2QME)/10<=1 wherein Qtr is a general polymer charge; QME is part of monomer charge of ester type. Proposed polyelectrolytes are used for dehydration of cleared slimes, sewage treatment, preparing drinking water or for producing paper or cardboard. ^ EFFECT: valuable properties of polyelectrolytes. ^ 15 cl, 4 tbl, 12 ex |
