Chitosan is a linear amino polysaccharide. Great attention has been paid to this biomacromolecule due to its abundance in nature, biodegradability, biocompatibility and bioactivity. Unfortunately, its poor solubility in both common organic solvents and aqueous solutions has hampered its widespread application and basic investigate. Chitosan and its derivatives form lyotropic cholesteric liquid cry...学位：理学硕士院系专业：化学化工学院材料科学系_高分子化学与物理学号：20013600
