| Summary: | 博士 === 國立臺北科技大學 === 有機高分子研究所 === 100 === Chitosan with well-characterized biological properties natural polymer，The biodegradation, biocompatibility, and nontoxic. Chitosan (chitison) Chitin deacetylation (Deacetylated),an important application of polymer biomaterials , butinsoluble in water only soluble in acid , such as formic acid , acetic acid and lactic acid，thus making the development of chitosan to be limited.
. In this study, chitosan was synthesized with Glycidyltrimethylammonium Chloride The dynamic viscoelastic property of water-soluble GTMAC chitosan and water-insoluble chitosan were measured by oscillation rheometer (VE System) .
A simple Maxwell Model accurately describes a regular chitosan (CS) solution. The G’, G” crossover shifted toward lower frequencies as the CS concentration increased. A modified Maxwell Model. Interestingly, the crossover of G’ and G” was found to be independent of the GTMAC chitosan concentration,Further calculated the overlap concentration, C*. Finally,Studies have also reported that the rheological behavior of GTMAC chitosan depends on the polymer concentration、 ionic strength and the temperature, to understand their physical properties from experimental data concentration.
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