ETHER POLYCARBOXYLIC ACID SLUMP-RETAINING AGENT AND PREPARATION METHOD THEREOF
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机译:醚性聚羧酸羧酸盐保持剂及其制备方法
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摘要
An ether polycarboxylic acid slump-retaining agent and preparation method thereof, the preparation method comprising: performing esterification with an unsaturated carboxylic acid and/or anhydride and an unsaturated carboxylic acid hydroxyl ester to prepare a difunctional monomer. Compared with a method for preparing the difunctional monomer by performing esterification or amidation with a diamine or diol and alkenyl acid, the preparation method of the present invention prepares the difunctional monomer only via a unilateral esterification reaction, the reaction being easier to carry out and faster.
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