ROMP polymer-based antimicrobial films repeatedly chargeable with silver ions

摘要: Abstract Two norbornene derivatives bearing a pendant pyridyl group were prepared: the 3-(pyridin-2-yl)propyl ester of 5-norbornene- endo -2-carboxylic acid ( 1 ) and N -(pyridin-2-ylmethyl)-5-norbornene- -2,3-dicarboxyimide 2 ). Both these compounds produced high yields ROMP polymers, poly( ), with 2nd generation Grubbs catalyst. When Ag + ions added to polymer solutions, polymer–Ag composites, -Ag) -Ag), formed quantitatively. Poly( films from their DMF latter film showed strong antimicrobial properties against Gram-positive Bacillus subtilis Gram-negative Escherichia coli . Alternatively, when was immersed in solution , it able trap ion give surface-modified [Ag/poly( )]. The efficacy )] same as that made which indicated solid-state reaction surfaces toward quantitative. lost its biocidal effect after repeated use, could be reloaded by immersing silver solution, fully restored original activity.