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Mechanical properties of silk fibroin–microcrystalline cellulose composite films
Abstract
Silk fibroin–microcrystalline cellulose (cellulose whisker) composite films with varied compositions were prepared by casting mixed aqueous solution/suspensions of the two components. Silk fibroin was dissolved in 10 M LiSCN followed by dialysis; a cellulose whisker suspension was prepared by sulfuric acid hydrolysis of tunicate cellulose. Macroscopically homogeneous films were obtained at all mixing ratios. While the Young's modulus of the composite films showed a linear, additive dependence on the mixing ratio, the tensile strength and ultimate strain showed a maximum at a 70–80% cellulose content, reaching five times those of fibroin‐alone or cellulose‐alone films. At the same mixing ratio, infrared spectra of the composite films showed a shift of the amide I peak from 1654 to 1625 cm−1, indicating the conformational change of fibroin from a random coil to a β structure (silk II) at the whisker–matrix interface. This change seems to be induced by contact of fibroin molecules with a highly ordered surface of cellulose whisker. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 3425–3429, 2002
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Citations
Cites
Polymer nanocomposites reinforced by cellulose whiskers
Favier, V., Chanzy, H., & Cavaille, J. Y. (1995) · Macromolecules · doi:10.1021/ma00122a053 · Cited by 1,149
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Moon, R. J., Martini, A., Nairn, J., Simonsen, J., & Youngblood, J. (2011) · Chemical Society Reviews · doi:10.1039/c0cs00108b · Cited by 6,756
Structure and thermal properties of poly(lactic acid)/cellulose whiskers nanocomposite materials
Petersson, L., Kvien, I., & Oksman, K. (2007) · Composites Science and Technology · doi:10.1016/j.compscitech.2006.12.012 · Cited by 576
Das, A., Ringu, T., Ghosh, S., & Pramanik, N. (2023) · Polymer Bulletin · doi:10.1007/s00289-022-04443-4 · Cited by 380
Physical properties of starch nanocrystal-reinforced pullulan films
KRISTO, E., & BILIADERIS, C. (2007) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2006.07.021 · Cited by 345
Molecularly Engineered Nanocomposites: Layer-by-Layer Assembly of Cellulose Nanocrystals
Podsiadlo, P., Choi, S.-Y., Shim, B., Lee, J., Cuddihy, M., & Kotov, N. A. (2005) · Biomacromolecules · doi:10.1021/bm050333u · Cited by 272
Metadata
- Authors
- Noishiki, Y., Nishiyama, Y., Wada, M., Kuga, S., & Magoshi, J.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2002-10-09
- Volume
- 86
- Issue
- 13
- Pages
- 3425-3429
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2151200214
- Cited by
- 173
- References
- 1
- FWCI
- 2.76
- Type
- journal article
- Language
- en
- Open access
- closed
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