新型MA/AA/HEMA三元共聚物阻垢剂的合成及反应条件的确定  

Synthesis of a novel terpolymer and option of its optimal conditions

作　　者：余嵘[1] 逯佩宁 严程[1] 马志祥[1] 赫雷刚 赵丹[1] 刘渊博[1] 

机构地区：[1]西安工程大学环境与化学工程学院,西安710048

出　　处：《功能材料》2017年第2期2071-2073,2079,共4页Journal of Functional Materials

基　　金：陕西省工业科技攻关资助项目(2015GY101);陕西省教育厅科研计划资助项目(15JK1326)

摘　　要：以马来酸酐(MA)、丙烯酸(AA)和甲基丙烯酸羟乙酯(HEMA)为单体,亚硫酸氢钠-过硫酸铵为引发剂,叔丁醇为分子量调节剂,采用水溶液自由基聚合法,合成MA/AA/HEMA新型三元共聚物阻垢分散剂,并通过正交实验测试法得出其最佳合成条件。通过静态沉淀抑制法对三元共聚物的阻垢性能进行评价,共聚物投加量为4mg/L时,对CaCO_3的阻垢率最佳,达到93.72%。利用红外光谱和扫描电子显微镜对共聚物的结构进行分析,共聚物结构中具有羧基、酰胺基、酯基和磺酸基等官能团,且具有较大的比表面积使得凝聚分散作用抑制CaCO_3沉淀容易进行。With maleic anhydride （MA）, acryhc acid （AA） and hydroxyethyl methacrylate （HAMA） as the monomer, sodium bisulfite ammonium persulfate as initiator, a novel terpolymer scale inhibitor was synthesized though aqueous radical polymerization, orthogonal experiment on factors affecting the scale properties of the copolymer were optimized , the optimal condition is determined. By the static experiment method , the performance of terpolymer scale inhibitor is evaluted. When the copolymer dosage was 4 mg/L, the scale inhibiting rate for CaCO3 was best,reaching 93.72%. The copolymers was analyzed with infrared spectroscopy and scanning electron microscope, it containing carboxyl, ester, amide and sulfonie acid , and the specific surface area made dispersion and agglomeration inhibiting CaCO3 precipitate easy.

关 键 词：三元共聚物 水溶液自由基聚合 阻垢性能 官能团 

分 类 号：X783[环境科学与工程—环境工程]