Magnetic hydrogel beads based on chitosan

Verfasser / Beitragende:
[Dilyana Paneva, Olya Stoilova, Nevena Manolova, Iliya Rashkov]
Ort, Verlag, Jahr:
2004
Enthalten in:
e-Polymers, 4/1(2004-12-01), 673-683
Format:
Artikel (online)
ID: 378903128
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024 7 0 |a 10.1515/epoly.2004.4.1.673  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1515/epoly.2004.4.1.673 
245 0 0 |a Magnetic hydrogel beads based on chitosan  |h [Elektronische Daten]  |c [Dilyana Paneva, Olya Stoilova, Nevena Manolova, Iliya Rashkov] 
520 3 |a A novel effective route for incorporating magnetic material in chitosan beads by capillary extrusion is proposed. Magnetic material (Fe3O4) with particle size 2 μm and 10 nm was used. The weight ratio chitosan : Fe3O4 was varied in the range from 4:1 to 1:1. The obtained magnetic beads were modified by physical crosslinking with CuSO4, chemical crosslinking with epichlorohydrin, or were coated with a polyelectrolyte complex chitosan/poly(2-acryloylamido-2-methylpropanesulfonic acid). The morphology and the magnetic properties of the beads were studied by optical and scanning electron microscopy, and magnetometry. The magnetisation values of the beads increased on increasing the proportion of Fe3O4. A magnetic field intensity of 6 kOe was completely enough to reach orientation of all dipole moments of the incorporated Fe3O4. The magnetic beads completely sorbed a model dye - reactive red - from its aqueous solution, thus implying that such materials might be used for wastewater treatment in textile industry. 
540 |a © 2013 by Walter de Gruyter GmbH & Co. 
700 1 |a Paneva  |D Dilyana  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
700 1 |a Stoilova  |D Olya  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
700 1 |a Manolova  |D Nevena  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
700 1 |a Rashkov  |D Iliya  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
773 0 |t e-Polymers  |d De Gruyter  |g 4/1(2004-12-01), 673-683  |x 2197-4586  |q 4:1<673  |1 2004  |2 4  |o epoly 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Paneva  |D Dilyana  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Stoilova  |D Olya  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Manolova  |D Nevena  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rashkov  |D Iliya  |u Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103 A, Sofia 1113, Bulgaria; Fax +359 (0)2 870 75 23  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t e-Polymers  |d De Gruyter  |g 4/1(2004-12-01), 673-683  |x 2197-4586  |q 4:1<673  |1 2004  |2 4  |o epoly 
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