含聚醚侧链梳型聚羧酸盐分散剂的合成及其应用  

Synthesis of Polyether Side Chain Combed Polycarboxylate Dispersant and Its Application

作　　者：代晶晶[1] 郭旭[1] 何炼[1] 张振兵[1] 李文刚 张博[1] 任天瑞[1] DAI Jingjing;GUO Xu;HE Lian;ZHANG Zhenbing;LI Wengang;ZHANG Bo;REN Tianrui(The Key Laboratory of Resource Chemistry of Ministry of Education,College of Life and EnvironmentalScience,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]上海师范大学生命与环境科学学院教育部资源化学重点实验室,上海200234

出　　处：《世界农药》2019年第2期49-52,56,共5页World Pesticide

基　　金：上海市科技兴农重点攻关项目[批准号:沪农科创字(2018)第3-3号]

摘　　要：以α-甲基丙烯酸、烯丙基聚氧乙烯醚和丙烯酸甲酯(丙烯酸乙酯、丙烯酸正丁酯)为单体合成三元共聚物分散剂,经红外与核磁确定其结构,用表面张力法测定其临界胶束浓度(CMC)。同时考察了分散剂添加量对600 g/L吡虫啉水悬浮剂(SC)的Zeta电势、热贮稳定性等的影响。结果表明,当分散剂C的添加量为6%时,600g/L吡虫啉SC具有更好的分散性能和稳定性。Terpolymer dispersants were synthesized by usingα-methacrylic acid,allyl polyoxyethylene ether and methyl acrylate(ethyl acrylate,Butyl acrylate)as monomers.Their structures were characterized by infrared spectroscopy and nuclear magnetic resonance.Moreover,the surface properties were evaluated using the surface tension method.We also investigated the effects of the addition of different amount of dispersants on the zeta potential,suspension rate,thermal storage stability of 600 g/L suspension concentrate(SC)of imidacloprid.The results showed that when the amount of dispersant C is 6%,imidacloprid SC has better dispersibility and stability.

关 键 词：梳型聚羧酸盐分散剂 表面性能 吡虫啉 水悬浮剂 稳定性 

分 类 号：TQ450.4[化学工程—农药化工]