Palladium adsorbing properties of UV-curable chitosan derivatives and surface analysis of chitosan-containing paint.
The results of X-ray photoelectron spectroscopy (XPS) analyses indicated that palladium chloride was adsorbed on a plastic surface coated with a chitosan-containing paint (C-Paint), and was completely reduced to Pd(0) after reduction with dimethylamine-borane. To improve the stability and hardening properties of C-Paint, UV-curable chitosan derivatives, such as N-[3-methoxy-4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]methylated chitosan and N-(3-methoxy-4-methacryloyloxyphenyl)methylated chitosan, were synthesized. The derivatives showed better affinity for organic solvents. After UV irradiation for 20s, an acidic solution of these derivatives was transformed to a gel, and the dried films exhibited good palladium(II) adsorption at pH 1.1.
D000327:Adsorption; D000447:Aldehydes / Q000737:chemistry; D000478:Alkylation; D048271:Chitosan / Q000737:chemistry*; D015394:Molecular Structure; D010150:Paint; D010165:Palladium / Q000737:chemistry*; D010777:Photochemistry; D012995:Solubility; D013057:Spectrum Analysis; D013499:Surface Properties; D014466:Ultraviolet Rays
D000447:Aldehydes; D010165:Palladium; D048271:Chitosan