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Thermal,morphological, and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process |
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| Authors: | Steva Levi? Nina Obradovi? Vladimir Pavlovi? Bojana Isailovi? Ivana Kosti? Miodrag Mitri? Branko Bugarski Viktor Nedovi? |
| Institution: | 1. Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081, Belgrade-Zemun, Serbia 2. Institute of Technical Sciences-SASA, Knez Mihajlova 35/IV, 11000, Belgrade, Serbia 3. Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia 4. Institute of Nuclear Science Vin?a, University of Belgrade, P.O. Box 522, 11000, Belgrade, Serbia |
| Abstract: | In this study, polyvinyl alcohol (PVA) nanofibers with ethyl vanillin as an active compound were prepared using electrospinning technique. The final products of electrospinning process were in the form of nanofibers films. PVA/ethyl vanillin nanofibers, having fibers diameters in the range 100–1700 nm, were successfully electrospun from ethanol/water mixture of PVA and ethyl vanillin. The effects of immobilization process on ethyl vanillin thermal properties were investigated by differential scanning calorimetry (DSC). The results of DSC showed significant influence of immobilization process on thermal properties of ethyl vanillin. It was noticed that melting point of immobilized ethyl vanillin was lower (~55 °C) compared to free flavor (~77 °C). Our results showed that films based on PVA/ethyl vanillin nanofibers are mechanically stable. |
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