Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids
Polyglycerol-based hydrogels from biodegradable raw materials were synthesized by crosslinking reactions of polyglycerol with citric and fatty acids. Three hydrogels were studied varying molar ratios of crosslinking agent. It was found that crosslink amount, type, and size play a crucial role in swe...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2018/3267361 |
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| author | Leidy C. Solano-Delgado César A. Bravo-Sanabria Carolina Ardila-Suárez Gustavo E. Ramírez-Caballero |
| author_facet | Leidy C. Solano-Delgado César A. Bravo-Sanabria Carolina Ardila-Suárez Gustavo E. Ramírez-Caballero |
| author_sort | Leidy C. Solano-Delgado |
| collection | DOAJ |
| description | Polyglycerol-based hydrogels from biodegradable raw materials were synthesized by crosslinking reactions of polyglycerol with citric and fatty acids. Three hydrogels were studied varying molar ratios of crosslinking agent. It was found that crosslink amount, type, and size play a crucial role in swelling, thermal, mechanical, and stimuli-responsive properties. The hydrogels absorption capacity changed in response to temperature and pH external stimuli. The hydrogel with the highest swelling capacity absorbed more than 7 times its own weight at room temperature and pH 5. This material increased 14 times its own weight at pH 10. Creep-recovery tests were performed to study the effect of crosslinking agent on mechanical properties. Deformation and percentage of recovery of synthesized hydrogels were obtained. Formation of hydrogels was confirmed using FTIR, and physicochemical properties were analyzed by Scanning Electron Microscopy (SEM), Differential Scanning Calorimetric (DSC), and Dynamic Mechanical Analysis (DMA). This paper aims to give a contribution to biobased hydrogel knowledge from chemical, physicochemical, and mechanical point of view. |
| format | Article |
| id | doaj-art-f647f50ae2034f92b1f1ce79ddc09ba5 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-f647f50ae2034f92b1f1ce79ddc09ba52025-02-03T06:00:17ZengWileyInternational Journal of Polymer Science1687-94221687-94302018-01-01201810.1155/2018/32673613267361Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty AcidsLeidy C. Solano-Delgado0César A. Bravo-Sanabria1Carolina Ardila-Suárez2Gustavo E. Ramírez-Caballero3Grupo de Investigación en Polímeros, Escuela de Ingeniería Química, Universidad Industrial de Santander (UIS), Bucaramanga, ColombiaGrupo de Investigación en Polímeros, Escuela de Ingeniería Química, Universidad Industrial de Santander (UIS), Bucaramanga, ColombiaGrupo de Investigación en Polímeros, Escuela de Ingeniería Química, Universidad Industrial de Santander (UIS), Bucaramanga, ColombiaGrupo de Investigación en Polímeros, Escuela de Ingeniería Química, Universidad Industrial de Santander (UIS), Bucaramanga, ColombiaPolyglycerol-based hydrogels from biodegradable raw materials were synthesized by crosslinking reactions of polyglycerol with citric and fatty acids. Three hydrogels were studied varying molar ratios of crosslinking agent. It was found that crosslink amount, type, and size play a crucial role in swelling, thermal, mechanical, and stimuli-responsive properties. The hydrogels absorption capacity changed in response to temperature and pH external stimuli. The hydrogel with the highest swelling capacity absorbed more than 7 times its own weight at room temperature and pH 5. This material increased 14 times its own weight at pH 10. Creep-recovery tests were performed to study the effect of crosslinking agent on mechanical properties. Deformation and percentage of recovery of synthesized hydrogels were obtained. Formation of hydrogels was confirmed using FTIR, and physicochemical properties were analyzed by Scanning Electron Microscopy (SEM), Differential Scanning Calorimetric (DSC), and Dynamic Mechanical Analysis (DMA). This paper aims to give a contribution to biobased hydrogel knowledge from chemical, physicochemical, and mechanical point of view.http://dx.doi.org/10.1155/2018/3267361 |
| spellingShingle | Leidy C. Solano-Delgado César A. Bravo-Sanabria Carolina Ardila-Suárez Gustavo E. Ramírez-Caballero Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids International Journal of Polymer Science |
| title | Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids |
| title_full | Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids |
| title_fullStr | Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids |
| title_full_unstemmed | Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids |
| title_short | Stimuli-Responsive Hydrogels Based on Polyglycerol Crosslinked with Citric and Fatty Acids |
| title_sort | stimuli responsive hydrogels based on polyglycerol crosslinked with citric and fatty acids |
| url | http://dx.doi.org/10.1155/2018/3267361 |
| work_keys_str_mv | AT leidycsolanodelgado stimuliresponsivehydrogelsbasedonpolyglycerolcrosslinkedwithcitricandfattyacids AT cesarabravosanabria stimuliresponsivehydrogelsbasedonpolyglycerolcrosslinkedwithcitricandfattyacids AT carolinaardilasuarez stimuliresponsivehydrogelsbasedonpolyglycerolcrosslinkedwithcitricandfattyacids AT gustavoeramirezcaballero stimuliresponsivehydrogelsbasedonpolyglycerolcrosslinkedwithcitricandfattyacids |