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Poly(styrene-acrylic acid) magnetic polymer microspheres |
| CHENG Yanling, MA Liuqiang, LI Ruohui |
| Biochemical Engineering College of Beijing Union University; |
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Abstract Magnetic polymer microspheres have been considered as a kind of new biopolymer materials with great advantages in bioseparation engineering and biomedicine engineering because they have not only polymer functional groups but also magnetic characteristics. Styrene-acrylic acid copolymer (p(S-AA)) magnetic microspheres were synthesized by dispersion polymerization with Fe3O4 as core and p(S-AA) as shell. The microspheres were characterized by SEM, size analysis, molecular weight and solid content measurement. All of them indicate that the microspheres are small in size, narrow in distribution, stable in chemistry and rich in functional groups on their surface.
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Issue Date: 05 December 2008
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