Water absorbency of chitosan grafted acrylic acid hydrogels
| Autor: | Agus Haryono, Nuri Astrini, Lik Anah |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Chemistry
Swelling capacity technology industry and agriculture macromolecular substances Potassium persulfate complex mixtures Chitosan chemistry.chemical_compound Distilled water Self-healing hydrogels medicine Fourier transform infrared spectroscopy Swelling medicine.symptom Nuclear chemistry Acrylic acid |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 223:012045 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/223/1/012045 |
| Popis: | Acrylic acid (AA) monomer was directly grafted onto chitosan (CTS) using potassium persulfate (KPS) as an initiator and methylenebisacrylamide (MBA) as a crosslinking agent under an inert atmosphere. One factor affecting the swelling capacity of the obtained hydrogel, KPS concentration, were studied. The hydrogel products were characterized using Fourier Transform Infrared spectroscopy (FTIR) for chemical structure and scanning electron microscopy (SEM) for morphology. Swelling of the hydrogel samples in distilled water and saline solution ( 9% NaCl ) was examined. Swelling capacity of the CTS-g-PAA hydrogels in distilled water (88.53 g/g) was higher than in NaCl solution (29.94 g/g) The highest swelling capacity value was obtained when the grafted reaction was carried out using 2.5wt% initiator |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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