title: Functionalized celluloses and their nanoparticles: morphology, thermal properties, and solubility studies.
abstract: Agricultural residues derived cellulose was used to synthesize a new series of carboxy functionalized cellulosic nanoparticles (quasi-spherical shaped, 13.2-21.5% carboxyl content) and macro-sized 6-carboxycelluloses (long-fibril shaped, 1.7-22% carboxyl content). The DP (50-70) and yield (upto 46%) of nanoparticles were manipulated by controlling the reaction temperature and time. TGA/DTG thermographs of the carboxycelluloses gave thermostability data and co-related well with the residual crystalline, amorphous, and anhydroglucuronic acid content. The particle shape and size had no effect on the thermal stability. Some derivatives were fully or partially soluble in aqueous alkali and non-aqueous solvents, which can lead to increased versatility of these polymers.
authors.affiliation: Polymer Science & Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, India.
authors.forename: Priyanka R
authors.initials: PR
authors.lastname: Sharma
authors.affiliation: Polymer Science & Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, India. Electronic address: aj.varma@ncl.res.in.
authors.forename: A J
authors.initials: AJ
authors.lastname: Varma
mesh_terms: D002483:Cellulose, Oxidized / Q000737:chemistry*; D006358:Hot Temperature; D053758:Nanoparticles / Q000737:chemistry*; D012995:Solubility
chemical_list: D002483:Cellulose, Oxidized
keywords: 6-Carboxycellulose; Cellulose; DTG; Morphology; Nanoparticles; TGA