Magnetic characterization of polyvinyl alcohol ferrogels and films
Source abstract
Abstract
This study elucidates the tunability of the magnetic properties of cobalt spinel ferrites embedded in a polyvinyl alcohol (PVA) hydrogel by changing the structure of the polymer network. We report on the preparation and characterization of sPS-CoFe2O4 ferrofluid and PVA/sulfonated polystyrene (sPS)-CoFe2O4 ferrogels obtained by submitting the samples to a different number of freezing–thawing (F–T) cycles. The magnetic properties were evaluated and interpreted as a function of the PVA/sPS-CoFe2O4 composition and final structure of the ferrogels.
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Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Supercapacitor Materials and Fabrication · Electromagnetic wave absorption materials
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