摘要
试验采用不同聚合度的甲氧基聚乙二醇合成丙烯酸类单体,在链转移剂和引发剂存在的情况下,共聚合成了聚羧酸系高效减水剂。对合成的外加剂进行了一些微观测试,初步探讨了聚羧酸系高效减水剂的减水机理。
Acrylic monomers were synthesized with methoxy-polyethylene glycol of different mole mass and under the presence of chain transfer agent and reaction initiator polycarboxylic high range water reducer was synthesized. Microscopic tests were made of the additives synthesized and initial exploration was carried out for mechanism of water reducer.
出处
《化学建材》
2009年第4期38-39,共2页
Chemical Materials for Construction
基金
科技部科研院所技术开发研究专项资金支持项目
名称"高速铁路用高性能混凝土关键材料及配套技术(NCSTE-2007-JKZX-032)
关键词
大单体
酯化反应
聚羧酸
高效减水剂
macromonomer
esterification reaction
polycarboxylic acid
high range water reducer