二乙烯基苯
化学
苯乙烯
分散性
扫描电子显微镜
化学工程
水银孔隙仪
高效液相色谱法
悬浮聚合
粒径
聚合
醋酸
丙烯酸
色谱法
多孔性
共聚物
高分子化学
聚合物
材料科学
多孔介质
有机化学
复合材料
物理化学
工程类
作者
Hailin Cong,Jie Xing,Xin Ding,Shuai Zhang,Youqing Shen,Bing Yu
出处
期刊:Talanta
[Elsevier]
日期:2020-04-01
卷期号:210: 120586-120586
被引量:32
标识
DOI:10.1016/j.talanta.2019.120586
摘要
Monodisperse cross-linked poly (styrene-divinylbenzene) (P(S-DVB)) porous microspheres with a particle size of about 10 μm were obtained by using the improved two-step seed swelling polymerization method. The influence of different crosslinking degree on specific surface area of porous microparticles was carefully investigated. The surface morphology and pore structure of seed microspheres and porous microspheres were characterized by scanning electron microscopy (SEM), accelerated surface area and porosimetry analyzer. Porous P(S-DVB) microparticles were sulfonated and used as a hydrophilic column packing material for high performance liquid chromatography (HPLC). The separation of oxalic acid, formic acid, acetic acid and acrylic acid was achieved by using the sulfonated-P(S-DVB) particles as packing materials in HPLC. The back pressure of sulfonated-P(S-DVB) column could be maintained at especially low level even at high flow rates due to the excellent permeability of the fillers. Moreover, the separation of chiral drugs was successfully carried out by using the chitosan coated sulfonated-P(S-DVB) microspheres as a column packing material in HPLC. By using water soluble non-toxic photosensitive diazoresin (DR) as linker, a green and facile way to modify packing materials was developed.
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