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PROCESS FOR PREPARING IMPROVED WEAK ACID RESINS AND POROUS WEAK ACID RESINS
PROCESS FOR PREPARING IMPROVED WEAK ACID RESINS AND POROUS WEAK ACID RESINS
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机译:制备改良弱酸树脂和多孔弱酸树脂的方法
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摘要
Weak acid type cation exchange resins are prepared by subjecting to caustic hydrolysis a copolymer comprising in polymerized form (1) a major amount of a monoethylenically unsaturated monomer which is hydrolyzable under caustic conditions; (2) a minor amount of a monoethylenically unsaturated monomer which has a less hydrolyzable character than the hydrolyzable monomer, and (3) an effective amount of a crosslinking monomer. For example, copolymers prepared from methyl acrylate, butyl acrylate and divinylbenzene. The resin beads so prepared exhibit increased resistance to osmotic shock.
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