키토산/세리신 블렌드 필름의 구조 및 특성 = Fine Structure and Physical Properties of Chitosan/Sericin Blend Films

다국어 초록 (Multilingual Abstract)

The uncrosslinked and crosslinked by ethylene glycol diglycidyl(EGDE) chitosan/sericin blend films were prepared by solvent blending method. Physicochemical properties of the prepared blend films according to various blend ratios were investigated. This was carried out by using universal testing machine, thermogravimeter(TGA), differential scanning calorimeter(DSC), wide angle X-ray diffractometer(WAXD), Fourier transform infrared spectrum(FTIR) and scanning electron microscopy(SEM). With an increase in the sericin mixing ratio, tensile stress increased whereas the tensile strain decreased for uncrosslinking blend films. For a cross linked chitosan/sericin blend film by EGDE, both the tensile stress and strain decreased. Chitosan/sericin blend films exhibit an excellent thermal stability when sericin mixing ratio is 25%. In the infrared spectra, chitosan/sericin blend films showed an absorption band of amide I peak at 1630 $cm^{-1}$ and it is concerned with C=O stretching vibration by strong hydrogen-bond between inter-molecular. These also showed an absorption band of amide II peak at 1521 $cm^{-1}$ concerned with N-H bending vibration. The absorption band of amide I peak decreased with an increase in the chitosan mixing ratio. We identified that there was good miscibility between chitosan and sericin. The water-retention values(WRV) of chitosan/sericin blend films increase as the amount of sericin is raised and this owes to the hydrophilic nature of sericin. Weight loss of the citosan/sericin blend films by cleaning with an aqueous sodium hydroxide increased with an increase in the sericin mixing ratio. This loss is the loss of acetic acid and sericin in the chitosan/sericin blend films and this is because of the molecular weight of the sericin is 1/5 of the chitosan and sericin is dissolved into NaOH solution. Weight loss increased when sericin content was more than 50% for the cross linked chitosan/sericin blend films. From the structure analysis, we identified that there was good miscibility and strong intermolecular interaction between the chitosan molecules that resulted from intermolecular hydrogen bonds.

참고문헌 (Reference)

1 이재호, "키토산/PVA 블렌드 필름의 구조 및 특성" 한국섬유공학회 47 (47): 92-101, 2010

2 윤흥수, "셀룰로오스/키토산 및 세리신/키토산 복합화필름의 역학특성" 한국염색가공학회 17 (17): 30-37, 2005

3 キチン, キトサン硏究會, "キチン, キトサンハンドブッグ" 技報堂出版 178-202, 1995

4 G. C. East, "Wet Spinning of Chitosan and The Acetylation of Chitosan Fibers" 50 : 1773-1779, 1993

5 C. H. Kim, "Synthesis of Chitosan Dirivatives with QuatemaryAmmonium Salt and Their Antibavterial Activity" 38 : 387-393, 1997

6 M. Miya, "Structures and Tensile Properties of Chitosan Films" 22 : 1149-1153, 1984

7 B. S. Kim, "Structure Development in Thermos/Thermoplastic Blends" 8 : 12-23, 1997

8 H. Y. Kweon, "Structural and Thermal Characteristics of Antheraea pernyi Silk Fibroin/ Chitosan Blend Film" 42 : 6651-6656, 2001

9 H. H. Lim, "Spinning and Properties of Cellulose/ Chitosan Blend Fiber" 34 : 444-449, 1997

10 N. Katoh, "Silk Protein, Serium, Inhibits Lipid Peroxidation and Tyrosinase Activity" 62 : 145-147, 1998

11 N. Kato, "Silk Protein Sericine as a New Biomaterial" 28 : 28-33, 2000

12 G. Freddi, "Silk Fibroin/Cellulose Blend Films : Preparation, Structure,and Physical Properties" 56 : 1537-1545, 1995

13 J. Hosokawa, "Reaction between Chitosan and Cellulose on Biodegradable Composite Film Formation" 30 : 788-792, 1991

14 H. Miyake, "Preparation of Chitosan/Sericin Blend Membrane and the Characteristics of the Resulting Membrane" 62 : 267-274, 2006

15 M. Hasegawa, "Preparation of Cellulose-chitosan Blend Film Using Chloral/Dimethylformamide" 35 : 983-987, 1994

16 O. Olabish, "Polymer-polymer Miscibility" Academic Press 120-, 1979

17 M. Avella, "Poly-d-(−)(3-hydroxybutyrate)/ Poly(ethylene oxide) Blends: Phase Diagram, Thermal and Crystallization Behaviour" 29 : 1731-1737, 1988

18 X. Chen, "PH Sensitivity and Ion Sensitivity of Hydrogels Based on Complex-forming Chitosan/Silk Fibroin Interpenetrating Polymer Network" 65 : 2257-2262, 1997

19 H. Jiang, "Optical Wave Guiding and Morphology of Chitosan Thin Films" 61 : 1163-1171, 1996

20 M. Nomura, "New Physiological Functions of Sericin and Application for Textile" 57 : 279-283, 2001

21 N. Kato, "New Physiological Function of Sericin and Its Application for Cosmetic and Food" 15 : 15-20, 1998

22 C. Peniche, "Interpolymer Complex of Chitosan and Polymethacrylic Derivatives of Salicylic Acid Prparation, Characterization and Modification by Thermal Treatment" 39 : 6549-6554, 1998

23 H. Ishikawa, "Fine Structure and Physical of Blend Film Composed of Silk Serine and Poly(vinyl alcohol)" 43 : 283-287, 1987

24 D. R. Paul, "Encyclopedia of Polymer Science and Engineering" John Wiley & Sons 399-, 1989

25 X. Qu, "Effect of Lactic/ Glycolic Acid Side Chains on the Thermal Degradation Kinetics of Chitosan Derivatives" 41 : 4841-4847, 2000

26 M. Hasegawa, "Dissolving States of Cellulose and Chitosan in Trifluoroacetic Acid" 45 : 1857-1863, 1992

27 J. Xu, "Chitosan Film Acylation and Effects on Biodegradability" 29 : 3436-3440, 1996

28 M. Hasegawa, "Characterization of Cellulose-chitosan Blend Films" 45 : 1873-1879, 1992

29 J. Hosakawa, "Biodegradable Film Derived from Chitosan and HomogenizedCellulose" 29 : 800-805, 1990

30 Y. Q. Zhang, "Applications of Natural Silk Protein Sericin in Biomaterial" 20 : 91-100, 2002