抄録
The crystal structure of chitosan depends on the extract material.α-chitin is extracted from crustacea and shrimp.β-chitin is extracted from squid. The properties of deacetylation chitosan depends on the chitin. There are many products created from chitin and chitosan.
In this study, the relationship between viscosity, pH volume of chitosan solution and molecular weight or deacetylation of chitosan was determined. The obtained data was used to understand the relationships between tensile strength, elongation of chitosan film and the molecular weight or deacetylation of chitosan. The results were as follows:
1. A low molecular weight of chitosan and film could not be created.
2. When low deacetylation of chitosan was neutralized, it wrinkled.
3. No difference in viscosity for each chitosan solution due to dissolving in malic and malonic acid was observed.
4. The pH of each obtained chitosan powder was more than 8.
5. The pH of chitosan solution made by dissolying in malic acid was higher than that by dissolving in malonic acid.
6. The pH of each mixed hydroxyapatite and chitosan solution was higher than that of each chitosan solution.
7. Tensile strength and elongation of chitosan films were influenced by the deacetylation of chitosan.
8. Tensile strength and elongation of chitosan film showed no difference with regard to the use of organic acids.
