Preparation and Properties of Double Guest-Host and Covalent Crosslinked Anti-Freezing Organic Hydrogel
In this study, a strategy of anti-freezing organic hydrogel system is proposed, which can be used as a medical gel dressing for the prevention and treatment of frostbite in extra cold regions. The supramolecular polymer organic hydrogel is a double network gel dressing. β-Cyclodextrin and azobenzene...
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| Veröffentlicht in: | Polymer science. Series A, Chemistry, physics Chemistry, physics, 2022-12, Vol.64 (6), p.714-723 |
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| container_title | Polymer science. Series A, Chemistry, physics |
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| creator | Xiaorong Dong Wang, Zhicun Cui, Lin Yin, Junxia Li, Fangling Yan, Meng Liu, Zhiyong |
| description | In this study, a strategy of anti-freezing organic hydrogel system is proposed, which can be used as a medical gel dressing for the prevention and treatment of frostbite in extra cold regions. The supramolecular polymer organic hydrogel is a double network gel dressing. β-Cyclodextrin and azobenzene groups form the first supramolecular network through supramolecular host-guest interaction, and acrylamide copolymerization with crosslinker forms the second layer of covalent network. Compared with acrylamide hydrogels, the stress required to reach the same strain at –25°C is 12 times higher than that at 25°C, while the stress required by organic hydrogels at the same conditions slightly changes, indicating that organic hydrogels also show good flexibility at low temperatures. At the same time, double-network organic hydrogel could recover to 70% of original tensile capacity after self-healing. |
| doi_str_mv | 10.1134/S0965545X23700645 |
| format | Article |
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| subjects | Chemistry Chemistry and Materials Science Medical Polymers Polymer Sciences |
| title | Preparation and Properties of Double Guest-Host and Covalent Crosslinked Anti-Freezing Organic Hydrogel |
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