CN201510577802
CN105175653A
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摘要:本发明涉及一种非水介质中引发接枝聚合制备接枝微粒PHEMA/SiO2的方法,首先利用偶联剂对硅胶微粒进行表面改性,得到改性硅胶微粒;在非水溶剂二甲基甲酰胺(DMF)中实现HEMA的表面引发接枝聚合,制备PHEMA/SiO2微粒。通过本发明所制得的接枝微粒PHEMA/SiO2,最大接枝度可达28.0g/100g;以接枝微粒PHEMA/SiO2为固体吸附剂,最大饱和吸附量达83mg/g。
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Abstract: The invention relates to a method for preparing PHEMA/SiO2 by surface-initiated graft polymerization in a non-aqueous medium. The method comprises the following steps that firstly, surface modification is performed on silica gel particles by utilizing a coupling agent to obtain modified silica gel particles; the surface-initiated graft polymerization of HEMA in non-aqueous solvent dimethylformamide (DMF)) is achieved, so as to prepare PHEMA/SiO2 particles. According to the grafted particles PHEMA/SiO2 prepared by the method, the maximum grafting degree can reach 28.0g/100g; the PHEMA/SiO2 of the grafted particles is taken as a solid adsorbent, and the maximum saturated adsorption capacity can reach 83mg/g.
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申请人: 中北大学
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Applicant: UNIV NORTH CHINA
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地址: 030008 山西省太原市尖草坪********(隐藏)
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发明(设计)人: 高保娇 雷青娟 张正国 王蕊欣 陈璐璐
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Inventor: GAO BAOJIAO; LEI QINGJUAN; ZHANG ZHENGGUO; WANG RUIXIN; CHEN LULU
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主分类号: C08F292/00(2006.01)I
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分类号: C08F292/00(2006.01)I C08F220/28(2006.01)I C08F4/40(2006.01)I C08K9/06(2006.01)I C08K3/36(2006.01)I B01J20/285(2006.01)I B01J20/30(2006.01)I
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