Synthesis and adsorption behaviors of poly(2-(dimethylamino)ethyl methacrylate) brushes on silica particles by surface-initiated atom transfer radical polymerization

被引：13
|
作者：
Zhou, Wanzhu [1 ]
Liu, Hui [1 ,2 ,3 ]
Ye, Hongqi [1 ]
Cui, Huanqing [1 ]
Wang, Ruimeng [1 ]
Li, Jie [1 ]
Zhang, Xinyue [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[3] Cent S Univ, Minist Educ, Key Lab Resource Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China
来源：
POWDER TECHNOLOGY | 2013年 / 249卷
关键词：
Poly(2-(dimethylamino)ethyl methacrylate) brushes; Surface-initiated atom transfer radical; polymerization; Responsive behaviors; Swelling; Adsorption; COPOLYMER; CHROMIUM(VI); SPIROPYRAN; ATRP;
D O I：
10.1016/j.powtec.2013.07.018
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Poly(2-(dimethylamino)ethyl methacrylate) brushes on the surface of silica particles were synthesized by surface-initiated atom transfer radical polymerization. The resulting brushes were analyzed and characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), thermo-gravimetric analysis (TGA) and X-ray photoelectron spectrometer (XPS). Equilibrium swelling ratio (ESR) was employed to assess the pH and temperature sensitive behaviors of the resulting PDMAEMA brushes, and much greater ESR was observed at pH 5 than at pH 9. Furthermore, the adsorption behaviors of PDMAEMA brushes for heavy metal ions (Cr(VI)) were investigated, and obvious pH responsive equilibrium adsorption amount was observed. (C) 2013 Elsevier B.V. All rights reserved.
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页码：1 / 6
页数：6
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