Biodegradable poly(N-isopropylacrylamide-co-N-maleylgelatin) hydrogels with adjustable swelling behavior
| Autor: | Cong Zhao, Yueqin Yu, Meiyu Sui, Xisheng Liu, Feifei Xin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Water transport
Polymers and Plastics Diffusion Kinetics Dynamic swelling 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Colloid and Surface Chemistry chemistry Chemical engineering Acrylamide Self-healing hydrogels Materials Chemistry Poly(N-isopropylacrylamide) medicine Physical and Theoretical Chemistry Swelling medicine.symptom 0210 nano-technology |
| Zdroj: | Colloid and Polymer Science. 297:763-769 |
| ISSN: | 1435-1536 0303-402X |
| DOI: | 10.1007/s00396-019-04498-2 |
| Popis: | This study describes the detailed investigation on dynamic swelling of biodegradable network system poly(N-isopropylacrylamide-co-N-maleylgelatin) P(NIPAAm-co-N-MAGEL) prepared by N-isopropylacrylamide (NIPAAm) and N-maleylgelatin (MAGEL) with N,N′-methylene bis(acrylamide) (BIS) as a cross-linking agent. Effects of MAGEL content on the swelling behavior were investigated. The results showed that the swelling kinetics were dependent on the content of MAGEL and the maximum swelling rate was observed at 30% content of MAGEL. The swelling process follows second-order kinetics, and the mechanism of water transport is pseudo-Fickian type of diffusion. Swelling kinetics under different concentrations of NaCl was also studied. The swelling rate decreased with increasing the concentration of NaCl. |
| Databáze: | OpenAIRE |
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