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Structural and Physical Properties of Antheraea pernyi Silk Fibroin Fiber Treated with $I_2-KI$ Aqueous Solution  

Khan Md. Majibur Rahman (Faculty of Textile Science and Technology, Shinshu University)
Gotoh Yasuo (Faculty of Textile Science and Technology, Shinshu University)
Morikawa Hideaki (Faculty of Textile Science and Technology, Shinshu University)
Miura Mikihiko (Faculty of Textile Science and Technology, Shinshu University)
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Fibers and Polymers / v.7, no.4, 2006 , pp. 333-338 More about this Journal
Silk fibroin (SF) fiber from the Antheraea pernyi silkworm was treated with a 1.23 N iodine-potassium iodide ($I_2-KI$) aqueous solution, and the structure and physical properties were investigated to clarify the effects of the iodine treatment. The noticeably high weight gain value of SF fiber, about 25 wt% was attributed to the absorption of polyiodide ions in the form of $I_3{^-}\;and\;I_5{^-}$. Fourier transform infrared spectroscopy and X-ray diffraction measurements suggested that polyiodide ions mainly entered the amorphous region. In addition, a new sharp reflection on the meridional direction, corresponding to a period of $7.0{\AA}$, was observed and indicated the possibility of the formation of mesophase structure of ${\beta}$-conformation chains. Dynamic viscoelastic measurements showed that the damping tan ${\delta}$ peak at $270^{\circ}C$ gradually shifted to lower temperature in the iodinated SF fibers, suggesting an enhancement of the molecular motion of the fibroin chains induced by the presence of polyiodide ions. With heating above $254^{\circ}C$, the iodine component introduced intermolecular cross-linking of SF, and the melt flow of the sample was inhibited. The thermal decomposition stability of fibroin molecules was greatly enhanced by iodine treatment.
Antheraea pernyi silk fibroin; Iodine treatment; Structure; Molecular motion; Thermal properties;
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1 M. Tsukada, G. Freddi, Y. Gotoh, and N. Kasai, J. Polym. Sci. Part-B: Polym. Phys., 32, 1407 (1994)   DOI   ScienceOn
2 J. Kirimura, M. Saito, and M. Kobayashi, Nature, 195, 729 (1962)
3 H. Y. Kweon and Y. H. Park, J. Appl. Polym. Sci., 73, 2887 (1999)   DOI   ScienceOn
4 H. Y. K weon, I. C. Urn, and Y. H. Park, Polymer, 42, 6651 (2001)   DOI   ScienceOn
5 M. Tsukada, G. Freddi, and N. Kasai, J. Polym. Sci. Part-B: Polym. Phys., 32, 1175 (1994)   DOI   ScienceOn
6 G. Freddi, M. Tsukada, and S. Beretta, J. Appl. Polym. Sci., 71, 1563 (1999)   DOI   ScienceOn
7 J. H. Yeum, J. W Kwak, S. S. Han, S. S. Kim, B. C. Ji, S. K. Noh, and W S. Lyoo, J. Appl. Polym. Sci., 94, 1435 (2004)   DOI   ScienceOn
8 N. Minoura, S. Aiba, M. Higuchi, Y. Gotoh, M. Tsukada, and Y. lmai, Biochem. Biophy. Res. Commun., 208, 511 (1995)   DOI   ScienceOn
9 A. Kawaguchi, Polymer, 33, 3981 (1992)   DOI   ScienceOn
10 H. Akiyama, T. Oono, M. Saito, and K. Iwatsuki, J. Dermatol., 31, 529 (2004)
11 H. Yajima, M. Morita, M. Hashimoto, H. Sashiwa, T. Kikuchi, and T. Ishii, Int. J. Thermophys., 22, 1265 (2001)   DOI
12 M. Nagura in 'Structure of Silk Yarn Part -A: Biological and Physical Aspects', Topics on 'Molecular Motion in Silk Fibre', p.249, Science Publishers Inc., UK, 2000
13 T. Tsuruta, T. Hayashi, K. Kataoka, K.Ishihara, and Y. Kimura in 'Biomedical Applications of Polymeric Materials', p.128, CRC Press, Boca Raton, FLXS, 1993
14 M. Tsukada, Y. Gotoh, G. Freddi, M. Matsumura, H. Shiozaki, and H. Ishikawa, J. Appl. Polym. Sci., 44, 2203 (1992)   DOI
15 Y. Kawahara, T. Hananouchi, and T. Kimura, Text. Res. J., 73, 289 (2003)   DOI   ScienceOn
16 G. Freddi, H. Kato, M. Tsukada, G. Allara, and H. Shiozaki, J. Appl. Polym. Sci., 55, 481 (1995)   DOI   ScienceOn
17 M. D. Pierschbacher and E. Ruoslahti, Nature. 309, 30 (1984)   DOI   ScienceOn
18 F. Lucas, J. T. B. Shaw, and S. G. Smith, J. Mol. Biol., 2, 339 (1960)   DOI
19 M. D. Pierschbacher and E. Ruoslahti, Proc. Natl. Acad. Sci. USA, 81, 5985 (1984)
20 Y. Kawahara, J. Seric. Sci. Jpn., 62, 272 (1993)
21 M. Li, W Tao, S. Lu, and S. Kuga, Int. J. Biol. Macromol., 32, 159 (2003)   DOI
22 R. E. Marsh, R. B. Corey, and L. Pauling, Acta Cryst., 8, 710 (1955)   DOI
23 G N. Gapurova, Zdravookhranenie Turkmenistana, 27, 15 (1983)
24 H. Lecus, Angew. Chem., 47, 779 (1934)   DOI
25 A. Cesaro and D. A. Brant, Biopolymers, 16, 983 (1997)   DOI
26 G. Freddi and M. Tsukada, Current Trends in Polym. Sci., 5, 53 (2000)
27 Y. Kawahara and M. Shioya, J. Appl. Polym. Sci., 73, 363 (1999)   DOI   ScienceOn
28 M. Tsukada, G. Freddi, M. R. Massafra, and S. Beretta, J. Appl. Polym. Sci., 67, 1393 (1998)   DOI   ScienceOn
29 M. M. R. Khan, Y. Gotoh, M. Miura, H. Morikawa, and M. Nagura, J. Polym. Sci. Part-B: Polym. Phys., 44, 3418 (2006)   DOI   ScienceOn
30 Q. Peng, Q. Xu, H. Xu, M. Pang, J. Li, and D. Sun, J. Appl. Polym. Sci., 98, 864 (2005)   DOI   ScienceOn
31 M. Tsukada, T. Arai, and S. Winkler, J. Appl. Polym. Sci., 78, 382 (2000)   DOI   ScienceOn
32 H. Kato in 'Silk Processing Techniques and its Application', pp.18-19, Elsevier, Amsterdam, 1968
33 M. Li, W Tao, S. Kuga, and Y. Nishiyama, Polym. Adv. Technol., 14, 694 (2003)   DOI   ScienceOn
34 J. T. B. Shaw and S. G. Smith, Biochem. Biophys. Acta, 52, 305 (1961)   DOI   ScienceOn