Super slump type polycarboxylate high-performance water reducer and preparation method thereof

The invention belongs to the technical field of building materials, and specifically relates to a super slump type polycarboxylate high-performance water reducer and a preparation method thereof. By using the characteristic that esters can be hydrolyzed in alkali environment, and different ester groups are introduced onto polycarboxylate water reducer molecules. The preparation method comprises the following steps: taking methyl allyl polyethenoxy ether as a macromonomer, using acids and esters as polymerized small monomers, and using an initiator and a chain transfer agent as reaction conditions so as to synthesize the super slump type polycarboxylate high-performance water reducer. The super slump type polycarboxylate high-performance water reducer has the characteristics of good slump performance, relatively flexible synthetic mode and raw materials, and wider application range. 本发明属建筑材料技术领域，具体涉及种超保坍型聚羧酸系高性能减水剂及其制备方法。利用酯类在碱性环境中可以发生水解的特点，在聚羧酸系减水剂分子上引入不同的酯基。以甲基烯丙基聚氧乙烯醚为大单体，以酸类、酯类为聚合小单体，引发剂和链转移剂作为反应条件，合成超保坍型聚