两种丙烯酸-不饱和聚醚共聚物的结构研究及性能验证  

Structure Study and Performance Verification of Two Acrylic-unsaturated Polyether Copolymers

作　　者：裴继凯[1] 刘冠杰 王越[1] 武恩瑞 王自为[1,2] 任建国 PEI Ji-kai;LIU Guan-jie;WANG Yue;WU En-rui;WANG Zi-wei;REN Jian-guo(School of Chemistry and Chem ical Engineering,Shanxi University,Taiyuan 030006,China;Shanxi Shanda Hesheng New Materials Inc.,Taiyuan 030006,China)

机构地区：[1]山西大学化学化工学院,太原030006 [2]山西山大合盛新材料股份有限公司,太原030006

出　　处：《高分子通报》2022年第11期73-81,共9页Polymer Bulletin

基　　金：山西省教育厅高等学校科技成果转化培育项目(2020CG004)。

摘　　要：丙烯酸-乙二醇单乙烯基聚乙二醇醚共聚物(Acrylic acid grafted ethylene glycol monovinyl polyethylene glycol ether, AA-g-EPEG)是一种接枝梳状共聚物,目前主要用作水泥等微粉物料的分散剂。本文采用小分子模拟法对该共聚物进行了共聚特性的研究,理论计算中将丙烯酸-异丁烯基聚乙二醇共聚物(Acrylic acid grafted methallyl polyethylene glycol ether, AA-g-HPEG)作为对照组,共聚特性计算主要包括共聚单体竞聚率及单体活性、共聚物组成以及共聚物序列分布等,最后对优化条件下合成的两种共聚物在混凝土中的应用性能进行了对比评测。试验结果表明,共聚物理论结果与其性能试验有很大的正相关,共聚物组成和共聚物序列分布是影响共聚物性能的最重要的因素。Acrylic acid-ethylene glycol monovinyl polyglycol ether copolymer(AA-g-EPEG) is a graft copolymer, which is currently mainly used as a dispersant for cement concrete and other powder materials. This copolymer has been evaluated using a small molecule simulation method that concludes the calculation and analysis of copolymerization performance. Acrylic acid-isobutenyl polyethylene glycol copolymer(AA-g-HPEG) is used as the control group. The calculation of copolymerization performance mainly includes comonomer reactivity ratio and monomer activity, copolymer composition, as well as the sequence distribution of copolymers. A comparative test was conducted for the effect of the two copolymers synthesized under optimized conditions on the performance of concrete. The results show that the theoretical results of the copolymers have a great positive correlation with the performance tests. Copolymer composition and copolymer sequence distribution are the most important factor affecting copolymer performance.

关 键 词：丙烯酸-乙二醇单乙烯基聚乙二醇醚共聚物(AA-g-EPEG) 丙烯酸-异丁烯基聚乙二醇共聚物(AA-g-HPEG) 单体活性 共聚物组成 共聚物序列分布 混凝土 

分 类 号：TQ317[化学工程—高聚物工业]