| 摘要 |
PURPOSE: High molecular weight, water-soluble, cationic polymers are provided, which are useful in a number of applications e.g. the flocculation of suspended solids, recovery of minerals from mining operations, papermaking, enhanced oil recovery, soil conditioning, etc. CONSTITUTION: Compositions comprised of water, at least one precipitated cationic water-soluble polymer, an effective amount of at least one kosmotropic salt, and an effective amount of at least one chaotropic salt, wherein said chaotropic salt is present in an amount greater than 1 %, by weight, based on the weight of said cationic water-soluble polymer. The precipitated cationic water-soluble polymer is represented by the formula 1, wherein R, is either hydrogen or CH3, A is either an oxygen atom or NH, B is an alkylene or oxyalkylene group having 1 to 5 carbons, R2 and R3 are each an alkyl group having from 1 to 3 carbons, R4 is either an alkyl or substituted alkyl group having from 1 to 10 carbons, or an aryl or substituted aryl group having from 6 to 10 carbons, and X is an anionic counterion.
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