A method for modifying the properties of a suspension of solid or liquid particles in an aqueous medium, includes the step of adding to the suspension or to the aqueous medium a polymer prepared by inverse emulsion polymerization of monomers Ab, comprising a betaine group, and of nonionic monomers Ba included in an aqueous phase dispersed in the form of droplets in a hydrophobic external phase, wherein the molar ratio of the monomers Ab to the monomers Ba is from about 4/96 to about 40/60, the polymer exhibits an intrinsic viscosity of greater than 600 mL/g, the reduced specific viscosity being measured by dissolving the polymer in a 20% by weight aqueous NaCl solution.
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机译：一种改变固体或液体颗粒在水性介质中的悬浮液的性能的方法，该方法包括将通过单体A b 的反相乳液聚合制备的聚合物加入到悬浮液或水性介质中的步骤。包括甜菜碱基团的非离子单体B a 包含在水相中，该非离子单体以液滴形式分散在疏水性外相中，其中单体A b a 为约4/96至约40/60，该聚合物表现出大于600mL / g的特性粘度，通过将聚合物溶解来测量降低的比粘度。在20重量％的NaCl水溶液中。
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