Abstract
Chitosan-starch blend films were prepared, and their structure and properties were studied by FT-IR, X-ray diffraction, SEM and measurement of tensile strength. IR spectra and SEM analysis showed that the two polysaccharides were compatible, when the starch was less than 30% by weight. From X-ray diffraction patterns of blend fllms, it was observed that crystallization of starch was inhibited, and recrystallization of chitosan was also affected by starch. Crystal form I, one of the main two crystal forms of chitosan, drastically increased in 30% starch content films. These results indicated that the interactions between chitosan and starch molecules exist in the blend films. The tensile strength of the film were improved when chitosan and starch were blended by weight ratios of 8∶2 and 7∶3, in which the highest tensile strength (781 kg/cm2) was achieved.
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References
Isogai A, Atalla R H. Preparation of cellulose-chitosan polymer blends.Carbohydr Polym, 1992,19: 25
Yao Kangde, Liu Jing, Cheng Guoxiang,et al. Swelling behavior of pectin/chitosan complex films.J Appl Polym Sci, 1996,60: 279
Miya M, Yoshikawa S, Iwamoto R. Mechanical properties of poly (vinyl alcobol)-chitosan blend films.Kobunshi Ronbunshu, 1983,40: 645
Makarios-Laham Ibrahim, Lee Tung-ching. Biodegradability of chitin and chitosan-containing films in soil environment.J Environ Polym Degrad, 1995,3: 31
Roper H, Koch H. The role of starch in biodegradable thermoplastic materials.Starch, 1990,42: 123
Wiedmann W, Strobel E. Compounding of thermoplastic starch with thin screw extruders.Ibid, 1991,43: 138
George E, Sulliveanand T M, Park E H. Thermoplastic starch blends with poly (ethylene-co-vinyl alcohol): Procesability and Physical Properties.Polym Eng Sci, 1994,34: 17
Coffin D R, Fishman M L. Mechanical and microstructural properties of pectin/starch films.Ibid, 1995,57: 663
Takanori Sannan, Keisuke Kurita, Kaysyuki Ogura,et al. Studies on chitin: T. i. r. spectroscopic determination of degree of deacetylation.Polymer, 1978,19: 458
Yan Jun, Xu rongnan. Studies on preparation of chitosan and stability of the solution.Riyong huaxue gongye, 1987,15: 70
Xu Rensheng. Natural Prodrcts Chemistry. Beijing: Chinese Science Press, 1993. 416
Marchessault R H, Liang C Y. Infrared spectra of crystalline polysaccharides V, Chitin.J Polym Sci, 1961,43: 101
Samuels R J. Solid state characterization of the structure of chitosan films.J Polym Sci Phys Ed, 1981,19: 1081
Soest, Van J J G, D. De Wit,et al. Short-range structure in (partially) crystalline patato starch determined with attenuated total reflectance fourier-transform IR spectroscopy.Carbohdr Res, 1995,279: 201
Urbanczyk G W, Lipp-symonowicz B. The Influence of processing terms of chitosan membranes made of differently deacetylated chitin on the crystalline stracture of membranes.J Appl Polym Sci, 1994,51: 2191
Makoto Hasegawa, Akira Isogai, Fumihilo Onabe,et al. Characterization of cellulose chitosan blend Films.J Appl Polym Sci, 1992,45: 1873
Rabek J F. Experimental Methods in Polymer Chemistry. Chichester: Wiley Interscience, 1980. 505
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Supported by the National Natural Science Foundation of China
Du Yu min: born in August 1937, Professor
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Yumin, D., Zuyong, X. & Rong, L. Blend films of chitosan/starch. Wuhan Univ. J. Nat. Sci. 2, 220–224 (1997). https://doi.org/10.1007/BF02827836
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DOI: https://doi.org/10.1007/BF02827836