title: Crosslinked chitosan--preparation and characterization.
abstract: Chitosan undergoes radical-induced depolymerization in the presence of potassium persulfate at 60 degrees C, leading to extensive crosslinking of the fragmented chains on subsequent cooling at 4 degrees C. As a result, a possible conformational change leading to higher crystallinity, as evidenced by IR, X-ray and 13C NMR was observed.
authors.affiliation: Department of Biochemistry and Nutrition, Central Food Technological Research Institute, Mysore 570020, India.
authors.forename: Keelara V
authors.initials: KV
authors.lastname: Harish Prashanth
authors.forename: Rudrapatnam N
authors.initials: RN
authors.lastname: Tharanathan
mesh_terms: D002236:Carbohydrate Conformation; D048271:Chitosan / Q000737:chemistry* / Q000302:isolation & purification*; D003432:Cross-Linking Reagents; D003460:Crystallization; D005609:Free Radicals; D008855:Microscopy, Electron, Scanning; D019906:Nuclear Magnetic Resonance, Biomolecular; D017680:Potassium Compounds / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013431:Sulfates / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D003432:Cross-Linking Reagents; D005609:Free Radicals; D017680:Potassium Compounds; D013431:Sulfates; C009007:potassium persulfate; D048271:Chitosan