The chitosan solid film was prepared by solution method.The film microstructure and physical-chemical changes have been characterized by scanning electron microscopy(SEM),X ray diffraction(XRD),the thermal gravimeric analysis(TGA) and differential scanning calorimetry(DSC).Dynamic mechanical thermal analysis(DMTA) was used to measure the temperature spectra of the dynamic storage modulus(E′),dynamic loss modulus(E″) and the mechanical loss tangent (tanδ) for investigating the dynamic mechanical behavior and...