Knowledge Management System Of Institute of process engineering,CAS
| Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups | |
| Alternative Title | Chin. J. Chem. Eng. |
| Liu, XQ; Guan, YP; Xing, JM; Ma, ZY; Liu, HH | |
| 2003-12-01 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| ISSN | 1004-9541 |
| Volume | 11Issue:6Pages:731-735 |
| Abstract | Micron-size superparamagnetic poly (styrene-divinylbenzene-glycidyl methacrylate) (PSt-DVB-GMA) spheres were prepared via a modified suspension copolymerization method. Oleic acid coated magnetite (Fe3O4) nanoparticles made by co-precipitation were first mixed with monomers of St, DVB, GMA, and benzoyl peroxide (BPO) to form oil in water suspension with the presence of poly(vinyl pyrrolidone) (PVP-K30) as a stabilizer. Then the temperature of mixture was increased at a controlled rate to obtain small and relatively uniform droplets. Finally, the copolymerization reaction was initiated by the decomposition of BPO. The morphology and properties of magnetic PSt-DVB-GMA microspheres were examined by SEM, TEM, VSM, XRD and FT-IR. The magnetic microspheres obtained have very small size (about 4-7 mum) in diameter with narrow size distribution and superparamagnetic characteristics. Powder X-ray diffraction measurements show the inverse cubic spinel structure for the magnetite dispersed in polymer microspheres. FT-IR spectroscopy indicates extensive oxirane groups existed on the surface of magnetic PSt-DVB-GMA microspheres.; Micron-size superparamagnetic poly (styrene-divinylbenzene-glycidyl methacrylate) (PSt-DVB-GMA) spheres were prepared via a modified suspension copolymerization method. Oleic acid coated magnetite (Fe3O4) nanoparticles made by co-precipitation were first mixed with monomers of St, DVB, GMA, and benzoyl peroxide (BPO) to form oil in water suspension with the presence of poly(vinyl pyrrolidone) (PVP-K30) as a stabilizer. Then the temperature of mixture was increased at a controlled rate to obtain small and relatively uniform droplets. Finally, the copolymerization reaction was initiated by the decomposition of BPO. The morphology and properties of magnetic PSt-DVB-GMA microspheres were examined by SEM, TEM, VSM, XRD and FT-IR. The magnetic microspheres obtained have very small size (about 4-7 mum) in diameter with narrow size distribution and superparamagnetic characteristics. Powder X-ray diffraction measurements show the inverse cubic spinel structure for the magnetite dispersed in polymer microspheres. FT-IR spectroscopy indicates extensive oxirane groups existed on the surface of magnetic PSt-DVB-GMA microspheres. |
| Keyword | Magnetic Microsphere Synthesis Suspension Polymerization Bioseparation |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MICROSPHERES ; PARTICLES ; IMMOBILIZATION ; PURIFICATION ; CELLS |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000187739500021 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/5365 |
| Collection | 研究所（批量导入） |
| Affiliation | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, XQ,Guan, YP,Xing, JM,et al. Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2003,11(6):731-735. |
| APA | Liu, XQ,Guan, YP,Xing, JM,Ma, ZY,&Liu, HH.(2003).Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups.CHINESE JOURNAL OF CHEMICAL ENGINEERING,11(6),731-735. |
| MLA | Liu, XQ,et al."Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups".CHINESE JOURNAL OF CHEMICAL ENGINEERING 11.6(2003):731-735. |
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| SynthesisandProp_省略_（451KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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