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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 謝學真 | |
dc.contributor.author | Po-Hui Chen | en |
dc.contributor.author | 陳播暉 | zh_TW |
dc.date.accessioned | 2021-06-08T04:39:29Z | - |
dc.date.copyright | 2009-08-20 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-08-14 | |
dc.identifier.citation | 1. Prashanth KVH, Tharanathan RN. Chitin/chitosan: modifications and their unlimited application potential - an overview. Trends Food Sci Technol 2007; 18:117-131.
2. Dumitriu S. Polymeric Biomaterials. 2nd ed. New York: Marcel Dekker, Inc., 2002. 3. Chatelet C, Damour O, Domard A. Influence of the degree of acetylation on some biological properties of chitosan films. Biomaterials 2001; 22:261-268. 4. Shee FLT, Arul J, Brunet S, Mateescu AM, Bazinet L. Solubilization of chitosan by bipolar membrane electroacidification. J Agric Food Chem 2006; 54:6760-6764. 5. Ohkawa K, Cha DI, Kim H, Nishida A, Yamamoto H. Electrospinning of chitosan. Macromol Rapid Commun 2004; 25:1600-1605. 6. Dureja H, Tiwary AK, Gupta S. Simulation of skin permeability in chitosan membranes. Int J Pharm 2001; 213:193-198. 7. El-Tahlawy K, Gaffar MA, El-Rafie S. Novel method for preparation of beta-cyclodextrin/grafted chitosan and it's application. Carbohydr Polym 2006; 63:385-392. 8. Hamdine M, Heuzey MC, Begin A. Effect of organic and inorganic acids on concentrated chitosan solutions and gels. Int J Biol Macromol 2005; 37:134-142. 9. Hamdine M, Heuzey MC, Begin A. Viscoelastic properties of phosphoric and oxalic acid-based chitosan hydrogels. Rheol Acta 2006; 45:659-675. 10. Bodnar M, Hartmann JF, Borbely J. Preparation and characterization of chitosan-based nanoparticles. Biomacromolecules 2005; 6:2521-2527. 11. Chel-Guerrero L, Betancur AD. Cross-linkage of Canavalia ensiformis starch with adipic acid: Chemical and functional properties. J Agric Food Chem 1998; 46:2087-2091. 12. Kjm KM, Son JH, Kim SK, Weller CL, Hanna MA. Properties of chitosan films as a function of pH and solvent type. J Food Sci 2006; 71:E119-E124. 13. Nadarajah K, Prinyawiwatkul W, No HK, Sathivel S, Xu ZM. Sorption behavior of crawfish chitosan films as affected by chitosan extraction processes and solvent types. J Food Sci 2006; 71:E33-E39. 14. Madihally SV, Matthew HWT. Porous chitosan scaffolds for tissue engineering. Biomaterials 1999; 20:1133-1142. 15. Lee JY, Tan B, Cooper AI. 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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/23050 | - |
dc.description.abstract | 幾丁聚醣是一種由葡萄糖胺及乙醯化葡萄糖胺所組成的天然多醣類。幾丁聚醣具有許多特殊的性質,例如它帶有胺基等。利用這些特性,本研究改良幾丁聚醣材料。
在第一部分中,本研究發展了一個新的改良方式避免使用了有毒的交聯劑 (如戊二醛等),也不會造成材料的脆化,因此在幾丁聚醣材料的改良方面是一個更經濟且安全的選擇。在第二部分中,本研究開發了新的幾丁聚醣複合材料。這些複合材料具有比傳統複合材料更好的特性,因此深具應用潛力。在第三部分中,本研究將將幾丁聚醣與數種塑化劑混合,讓幾丁聚醣的材料表現更佳,因此可作為未來在幾丁聚醣的增塑應用上更好的選擇。 材料的多樣性決定了一個材料的價值及應用潛力。若能有大幅度的性質及型態變化,該材料就更有機會成功的符合特定用途的需要。本研究大幅提昇幾丁聚醣材料的多樣性,因此可提高幾丁聚醣的價值。 | zh_TW |
dc.description.abstract | Chitosan is a natural polysaccharide constituted by N-glucosamine and N-acetyl glucosamine. It has many inherent characteristics, including carrying amino groups. Taking advantage of these unique characteristics, chitosan-based materials were improved and diversified:
In the first part, a straightforward method has been developed for chitosan material; this method does not result in a brittle product, thus making it better than the use of toxic cross-linking reagents such as glutaraldehyde. In the second part, novel composite porous membranes were developed. Such composite membranes had outperformed the traditional chitosan materials and have potential. In the third part, several plasticizers were incorporated with chitosan. They could be good choices for future development of chitosan-based materials. Diversification is important for the applicability of a material. The greater the diversity of a material, the higher probability it would be successfully used in specific applications. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T04:39:29Z (GMT). No. of bitstreams: 1 ntu-98-D93524004-1.pdf: 4120545 bytes, checksum: 6d34111d11000a8f92345e4ae6854922 (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | Acknowledgements I
Abstract III 中文摘要 VII Table of Contents XI List of Figures XVII List of Tables XXIII Symbols and Abbreviations XXV Chapter 1 Background and Objectives 1 1.1 Background 1 1.2 Objectives 4 1.3 Framework of this study 6 Chapter 2 Replacement of Acetic Acid 13 2.1 Introduction 14 2.1.1 Dissolution 14 2.1.2 Fabrication 15 2.2 Materials and Methods 19 2.2.1 Materials 19 2.2.2 Preparation and characterization 19 2.2.3 Estimation 22 2.2.5 Water uptake 22 2.2.6 Analysis 23 2.3 Results and Discussion 26 2.3.1 Preparation and characterization 26 2.3.2 Observations 32 2.3.3 Water uptake36 2.4 Conclusion 48 Chapter 3 Chitosan with Improved and Diversified Properties 51 3.1 Introduction 52 3.2 Materials and Methods 59 3.2.1 Materials 59 3.2.2 Membranes 62 3.3 Results and Discussion 65 3.3.1 Characterization of the solutions 65 3.3.2 Characterization of the porous membranes 68 3.3.3 Analysis of the mechanical properties 72 3.4 Conclusion 86 Chapter 4 Improvement of Chitosan 89 4.1 Introduction 90 4.1.1 Chitosan and its applications 90 4.2 Materials and Methods 97 4.2.1 Materials 97 4.2.2 Preparation of solutions 97 4.2.3 Fabrication 102 4.3 Results and Discussion 110 4.3.1 Films 123 4.3.2 Properties141 4.4 Conclusion 151 Chapter 5 Summary and Future Works 155 5.1 Summary 155 5.2 Future works 160 Appendix 166 References 179 | |
dc.language.iso | en | |
dc.title | 以各種有機酸、酸性多醣、及非水溶性塑化劑提昇幾丁聚醣材料的多樣性 | zh_TW |
dc.title | Diversification of Chitosan-Based Materials by Various Carboxylic Acids, Acidic Polysaccharides, and Water-Insoluble Plasticizers | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 邱文英,王大銘,糜福龍,董崇民,徐善慧 | |
dc.subject.keyword | 幾丁聚醣,溶劑,二羧酸,果膠,聚電解質,塑化劑,雙成份溶劑系統, | zh_TW |
dc.subject.keyword | Chitosan,Solvent,Dicarboxylic acid,Pectin,Polyelectrolyte (PEC),Plasticizer,Binary solvent system, | en |
dc.relation.page | 194 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2009-08-14 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 化學工程學研究所 | zh_TW |
顯示於系所單位: | 化學工程學系 |
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