Basicity, Water Solubility and Intrinsic Viscosity of Carboxymethyl Chitosan as a Biofunctional Material

Xiang Ping Kong; Juan Wang; Chun Jie Wang; Xia Wu

doi:10.4028/www.scientific.net/AMR.531.507

Paper Titles

The Application of Organic (PVDF) Tubular Membrane on the Treatment of Catering Sewage
p.489

Preparation of SiO₂ Aerogel Supported Nano-TiO₂ Photocatalysts for Removing Rhodamine B in the Waste Water
p.494

Effect of Alginate and Cell Suspension on Viable Counts and Efficacy of Entrapment of Encapsulated B. bifidum BB28
p.499

Preparation and Characterization of Hydroxycamptothecin-Loaded Poly(D,L-lactic acid) Nanoparticles with High Drug Loading Capacity
p.503

Basicity, Water Solubility and Intrinsic Viscosity of Carboxymethyl Chitosan as a Biofunctional Material
p.507

Epoxy Modified with TDI to Cure Active Hydrogen Groups: Synthesis and Characterization
p.511

Kinetics of Ethylenediamine Wastewater Oxidation in Supercritical Water
p.516

Study on Analysis and Assessment of Acanthopanax senticosus from China and Korea with FT-IR
p.520

Antioxidant Activity of Acanthopanax senticosus Extract and Derivatives
p.524

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 531Basicity, Water Solubility and Intrinsic Viscosity...

Basicity, Water Solubility and Intrinsic Viscosity of Carboxymethyl Chitosan as a Biofunctional Material

Abstract:

The basicity, water solubility, intrinsic viscosity and molecular weight of carboxymethyl chitosan (CM-chitosan) were investigated. The solution pH remained at about 9.2 at the concentration of higher than 2.0 g/L. The isoelectric point of CM-chitosan was about 4.5 of pH, and the solubility of CM-chitosan at the solution pH of 2.0 to 6.0 was lower than 5 g/L. The acetic acid could be replaced by hydrochloric acid as solvent for the viscosity-average molecular weight determination of chitosan. The intrinsic viscosity values of CM-chitosan have significant differences in acidic and alkaline conditions. The viscosity-average molecular weight of CM-chitosan was (3.8 ± 0.2) × 10⁵, consistent with that of product chitosan of blank test.