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Preparation manner of hyper branch die poly carboxylic acid polymer cement dispersing agent

机译:高支模聚羧酸聚合物水泥分散剂的制备方法

摘要

The present invention provides a preparation method of hyperbranched polycarboxylic acid type copolymer cement dispersant, including: Monomer A, B and C undergo a free radical copolymerization in an aqueous medium. The molar ratio of Monomer A, Monomer B and Monomer C conforms to B/A-A-2-10 and C/(A+B-C)-0.02-0.08. Monomer A is expressed by General Formula (1), where R 1 is H or a methyl; X 1 =O, CH 2 O, CH 2 CH 2 O; m is an integer from 5 to 200. Monomer B is expressed by General Formula (2), where R 2 is H or COOM; R 3 is H or CH 3 and M is H, Na, K or NH 4 ; Monomer C is expressed by General Formula (3), where R 4 is H or methyl; X 2 =O, CH 2 O, CH 2 CH 2 O; Y=CH 2 , CH 2 CH 2 , CH(CH 3 ), CH 2 CH 2 CH 2 , CH(CH 3 )CH 2 , C(CH 3 ) 2 and n is an integer from 5 to 200.
机译:本发明提供了一种超支化聚羧酸型共聚物水泥分散剂的制备方法,包括:单体A,B和C在水性介质中进行自由基共聚。单体A,单体B和单体C的摩尔比符合B / A-A-2-10和C /(A + B-C)-0.02-0.08。单体A由通式(1)表示,其中R 1为H或甲基; X 1 = O,CH 2 O,CH 2 CH 2 O; m为5〜200的整数。单体B由通式(2)表示,其中,R 2为H或COOM。 R 3为H或CH 3,M为H,Na,K或NH 4;单体C由通式(3)表示,其中R 4为H或甲基; X 2 = O,CH 2 O,CH 2 CH 2 O; Y = CH 2,CH 2 CH 2,CH(CH 3),CH 2 CH 2 CH 2,CH(CH 3)CH 2,C(CH 3)2和n是5至200的整数。

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