Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties
In this study, we investigated the impact of reaction temperature on the physicochemical, structural, morphological, and thermal properties of sodium alginate/poly (vinyl alcohol)-based hydrogels, both in the pure form and with the addition of 20% (<i>v</i>/<i>v</i>) <i>...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/748 |
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| author | Katarzyna Bialik-Wąs Konstantinos N. Raftopoulos Krzysztof Pielichowski |
| author_facet | Katarzyna Bialik-Wąs Konstantinos N. Raftopoulos Krzysztof Pielichowski |
| author_sort | Katarzyna Bialik-Wąs |
| collection | DOAJ |
| description | In this study, we investigated the impact of reaction temperature on the physicochemical, structural, morphological, and thermal properties of sodium alginate/poly (vinyl alcohol)-based hydrogels, both in the pure form and with the addition of 20% (<i>v</i>/<i>v</i>) <i>Aloe vera</i> solution. The materials were prepared by chemical crosslinking at temperatures in the range of 65–75 °C. Poly (ethylene glycol) diacrylate was used as a crosslinking agent. The extent to which the crosslinking reaction proceeded was studied as a function of the reaction temperature, along with the thermal properties and morphology of the final materials. A measurement of gel fraction, in agreement with differential scanning calorimetry and Fourier transform infrared spectroscopy, showed that a higher temperature of reaction promoted the crosslinking reaction. On the basis of the aforementioned techniques, as well as by energy dispersive X-ray analysis under an electron microscope, it was also shown that the bioadditive <i>Aloe vera</i> promoted the crosslinking reaction. |
| first_indexed | 2024-03-09T23:38:11Z |
| format | Article |
| id | doaj.art-9c41068c04c640a193e9ef04ddf0a37e |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:38:11Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9c41068c04c640a193e9ef04ddf0a37e2023-11-23T16:56:33ZengMDPI AGMaterials1996-19442022-01-0115374810.3390/ma15030748Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal PropertiesKatarzyna Bialik-Wąs0Konstantinos N. Raftopoulos1Krzysztof Pielichowski2Department of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24 Warszawska Str., 31155 Cracow, PolandDepartment of Chemistry and Technology of Polymers, Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24 Warszawska Str., 31155 Cracow, PolandDepartment of Chemistry and Technology of Polymers, Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24 Warszawska Str., 31155 Cracow, PolandIn this study, we investigated the impact of reaction temperature on the physicochemical, structural, morphological, and thermal properties of sodium alginate/poly (vinyl alcohol)-based hydrogels, both in the pure form and with the addition of 20% (<i>v</i>/<i>v</i>) <i>Aloe vera</i> solution. The materials were prepared by chemical crosslinking at temperatures in the range of 65–75 °C. Poly (ethylene glycol) diacrylate was used as a crosslinking agent. The extent to which the crosslinking reaction proceeded was studied as a function of the reaction temperature, along with the thermal properties and morphology of the final materials. A measurement of gel fraction, in agreement with differential scanning calorimetry and Fourier transform infrared spectroscopy, showed that a higher temperature of reaction promoted the crosslinking reaction. On the basis of the aforementioned techniques, as well as by energy dispersive X-ray analysis under an electron microscope, it was also shown that the bioadditive <i>Aloe vera</i> promoted the crosslinking reaction.https://www.mdpi.com/1996-1944/15/3/748hydrogelssodium alginate/poly (vinyl alcohol) matrix<i>Aloe vera</i>DSC analysis |
| spellingShingle | Katarzyna Bialik-Wąs Konstantinos N. Raftopoulos Krzysztof Pielichowski Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties Materials hydrogels sodium alginate/poly (vinyl alcohol) matrix <i>Aloe vera</i> DSC analysis |
| title | Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties |
| title_full | Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties |
| title_fullStr | Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties |
| title_full_unstemmed | Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties |
| title_short | Alginate Hydrogels with <i>Aloe vera</i>: The Effects of Reaction Temperature on Morphology and Thermal Properties |
| title_sort | alginate hydrogels with i aloe vera i the effects of reaction temperature on morphology and thermal properties |
| topic | hydrogels sodium alginate/poly (vinyl alcohol) matrix <i>Aloe vera</i> DSC analysis |
| url | https://www.mdpi.com/1996-1944/15/3/748 |
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