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Current Research in Chemistry

Year: 2010 | Volume: 2 | Issue: 1 | Page No.: 1-9
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Authors

K. Nuanchai

S. Wilaiwan

S. Prasong

Keywords

Research Article

Effect of Different Organic Solvents and Treatment Times on Secondary Structure and Thermal Properties of Silk Fibroin Films

K. Nuanchai, S. Wilaiwan and S. Prasong
The aims of this study are to deal with the secondary structures and thermal properties of the Silk Fibroin (SF) films after treatment with different organic solvents; ethanol, ethyl acetate and methanol at various times. Influence of the organic solvents on secondary structure and thermal behavior of the SF films were investigated using Fourier transform infrared (FT-IR) spectroscopy. The results showed the secondary structures of SF films were changed from random coil into high strength, β-sheet structure. With TG, DTG and Heat flow results, the SF films increased their thermal stability after treatment with the organic solvents. However, the stability of SF films did not affect by treatment times. Therefore, a treatment SF film with organic solvent for 30 min is suitable condition. Comparison among organic solvents used, methanol is the best solvent to induce strength and thermal properties of SF films. This study indicated that various organic solvent could be used to improve SF properties with short time treatment.
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