多酯基侧链高保塑聚羧酸高效减水剂的研制

本文根据分子设计原理，在合成聚醚丙烯酸酯大单体的基础上，采用甲基丙烯磺酸钠、甲基丙烯酸羟乙酯三元共聚法合成了聚羧酸系高效减水剂，通过引入甲基丙烯酸羟乙酯的酯键、活性羟基侧链，提高了减水剂保塑性。通过对反应大单体摩尔比、反应物浓度、引发温度、反应时间等影响减水剂塑化效果等因素的试验，确定最佳的合成工艺。通过净浆试验研究了其应用性能，表明该聚羧酸型减水剂减水率高达35％，保坍性好，性价比高。

Development of High Plasticity Retention Polycarboxylate Superplasticizer with Polyester Side Chains

According to molecular design principle, a novel poly-carboxylic high range water reducer was synthesized by means of tertiary copolymerization of methylacrylic sodium sulfonate and hydroxyethyl methylacrylate on the basis of polyether glycolmethacrylate macro-monomer synthesized. Because of introduction of ester bond of hydroxyethyl methacrylate and active hydroxyl side chain, plasticity retention of water reducer was enhanced. Tests were made on factors such as reactant macro-monomer mol ratio, reactant c...