| 초록 |
Acylation of chitosan is one of the methods to improve its solubility. In this study a series of chitosan thiol-esters were prepared using thiazolidine carboxylic acid, (ethylthio)acetic acid, (phenylthio)acetic acid and Trifluoroacetic anhydride. The products were characterized using FT-IR and 1H NMR and their thermal property and morphology were analyzed using, differential scanning calorimetry and scanning electron microscopy respectively. The results showed that combining carboxylic acid(s) with chitosan provides new products with improved physical properties. |
