Cobalt Ferrite Nanoparticles as Multifunctional Cross-Linkers in PAAm Ferrohydrogels
Ferrohydrogels are synthesized by incorporation of magnetic CoFe2O4 nanoparticles into a polyacylamide hydrogel network during the polymerization process by utilizing different cross-linking units. Conventional cross-linked ferrohydrogels, using a molecular cross-linker, are compared to those obtain...
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| Veröffentlicht in: | Macromolecules 2011-04, Vol.44 (8), p.2990-2999 |
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| container_issue | 8 |
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| container_title | Macromolecules |
| container_volume | 44 |
| creator | Messing, Renate Frickel, Natalia Belkoura, Lhoussaine Strey, Reinhard Rahn, Helene Odenbach, Stefan Schmidt, Annette M |
| description | Ferrohydrogels are synthesized by incorporation of magnetic CoFe2O4 nanoparticles into a polyacylamide hydrogel network during the polymerization process by utilizing different cross-linking units. Conventional cross-linked ferrohydrogels, using a molecular cross-linker, are compared to those obtained by our new approach where the magnetic particles, surface-functionalized with methacylic groups, serve as sole, multifunctional cross-linkers. Both experimental series are analyzed with regard to their swelling behavior. The novel composite network is examined with respect to the cross-linkage, the network homogeneity, and the network architecture by various experimental techniques. |
| doi_str_mv | 10.1021/ma102708b |
| format | Article |
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| source | American Chemical Society Journals |
| subjects | Applied sciences Composites Exact sciences and technology Forms of application and semi-finished materials Polymer industry, paints, wood Technology of polymers |
| title | Cobalt Ferrite Nanoparticles as Multifunctional Cross-Linkers in PAAm Ferrohydrogels |
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