超支化聚醚阻垢剂的制备及性能  

Synthesis of Hyperbranched Polyether-Based Scale Inhibitors and Their Scale Inhibition Performance

作　　者：张积楷 江力 黄文艳 蒋其民 薛小强 蒋必彪 孔新 杨宏军 Jikai Zhang;Li Jiang;Wenyan Huang;Qimin Jiang;Xiaoqiang Xue;Bibiao Jiang;Xin Kong;Hongjun Yang(Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials,School of Materials Science and Engineering,Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering,Changzhou University,Changzhou 213164,China;Huaide College,Changzhou University,Jingjiang 214500,China;Changzhou Entai Environmental Technology Co.,Changzhou 213164,China)

机构地区：[1]江苏省环境友好高分子材料重点实验室常州大学材料科学与工程学院江苏省光伏科学与工程协同创新中心,江苏常州213164 [2]常州大学怀德学院,江苏靖江214500 [3]恩泰环保科技(常州)有限公司,江苏常州213164

出　　处：《高分子材料科学与工程》2022年第10期40-45,共6页Polymer Materials Science & Engineering

基　　金：江苏高校优势学科建设工程资助项目(PAPD)。

摘　　要：反渗透膜广泛应用于水体过滤和分离领域,但是水体中大量存在的微生物与金属离子会极大地降低其过滤和分离效果,加入阻垢剂是解决这一问题的主要途径。超支化聚合物阻垢剂具有优异的阻垢效果,但通常制备过程繁琐、生产能耗大、工业成本高。为此,文中选用2-丙烯酸-2-(二甲氨基)乙酯(DMAEA)和3-环氧-1-丙醇(GL)为单体,经自催化开环聚合和迈克尔加聚反应制备了端羟基超支化聚醚中间体(HBP-OH),并用丁二酸酐(SA)对其羧化成功制备了超支化聚醚阻垢剂(HBP-COOH)。通过核磁共振氢谱和傅里叶变换红外光谱等确定了HBP-OH和HBP-COOH的超支化结构;通过电导率和抗菌实验等对产物的阻垢和抗菌性能进行了研究。结果显示,在阻垢剂用量为30 mg/L、羧化温度70℃、羧化时间4 h、H2SO占GL质量2%时,HBPCOOH对CaCO垢抑制率高达91.2%、对CaSO垢抑制率达83.5%。阻垢剂对金黄色葡萄球菌(MRSA)的抑制率为98.3%。As a key role in wastewater treatment units, reverse osmosis membrane has been widely applied in filtration and separation fields. However, its water treatment performance was significantly affected by the microorganism and salts in waste water. Adding a scale inhibitor could help to remove these salts and pollutants,effectively. Unfortunately, their synthesis, especially for those with hyperbranched polyether structures, still remain challenges. Here, N,N-dimethyl aminoethyl acrylate(DMAEA) and glycidol(GL) were employed as monomers to prepare hyperbranched polyester(HBP-OH), by concurrent Michael addition and ring-opening polymerization.Subsequently, the resulted copolymers were post-modified by succinic anhydride(SA), producing scale inhibitors(HBP-COOH). Their hyperbranched polyether structures were analyzed and confirmed by nuclear magnetic resonance(1H-NMR) and infrared spectrum(IR). Their scale inhibition performance was studied by analyzing their ionic conductivities and antibacterial property. The results show that HBP-COOH synthesized at 70 ℃ with the carboxylation reaction time for 4 h, exhibits the best scale inhibition performance. At the concentration of 30 mg/L,the inhibition rate of HBP-COOH for CaCOand CaSOreaches 91.2% and 83.5%, respectively. Meanwhile, its bacteriostasis rate for staphylococcus aureus is up to 98.3%.

关 键 词：阻垢剂 超支化聚醚 自催化聚合 开环聚合 迈克尔加成反应 

分 类 号：TQ085.412[化学工程]