悬浮聚合法制备多孔吡啶基阴离子交换树脂及其表征  

Preparation and Characterization of Porous Pyridyl Anion Exchange Resins by Suspension Polymerization

作　　者：胡崇庆 韩刚 陈彦良 Hu Chongqin;Han Gang;Chen Yanliang(Division of Chemical&Ionizing-Radiation Metrology Technology,Shanghai Institute of Measurement and Testing Technology,Shanghai 201203,China)

机构地区：[1]上海市计量测试技术研究院化学与电流辐射计量技术研究所,上海201203

出　　处：《化学世界》2024年第3期184-188,共5页Chemical World

基　　金：上海市科学技术委员会人才计划(杨帆计划)(No.19YF1441600);国家市场监督管理总局科技计划(No.2022MK026)资助项目。

摘　　要：采用悬浮聚合法成功制备了多孔吡啶基弱碱性阴离子交换树脂(4VP-DVB),通过季铵化制备了强碱性阴离子交换树脂(4VP-DVBQ)。对两种树脂采用粒径分析、扫描电子显微镜(SEM)、比表面积测试(BET)、傅立叶变换红外吸收光谱(FT IR)以及热重分析(TGA)等进行了表征,并对成本进行了评估。实验结果表明:两种树脂都具有规则的球形结构,粒径分布于40~130μm,具备多孔性结构且平均孔径达15 nm;TGA结果表明,两种树脂有较好的热稳定性能,起始分解温度在200℃以上。Porous pyridyl weakly basic anion exchange resin(4VP-DVB)was successfully prepared by suspension polymerization;then,strong basic anion exchange resin(4VP-DVBQ)was obtained by quaternization.Characterization such as particle size analysis,scanning electron microscope(SEM),adsorption isotherm technique(BET),Fourier transform infrared spectrometer(FT IR)and thermal gravimetric analysis(TGA)were performed for both resins,and the cost assessment was carried out.The results showed that both resins have a regular spherical structure with particle sizes ranging from 40 to 130μm and the porous structure with an average pore size of 15 nm;in addition.TGA can prove that both resins have good thermal stability,and the initial decomposition temperature is above 200℃.

关 键 词：悬浮聚合法 吡啶基树脂 多孔性离子交换树脂 

分 类 号：O631.5[理学—高分子化学]