Abstract:
Generation 3.0 to 5.0 poly(amidoamine)(PAMAM) dendrimers were modified with(methyl)-mercaptoacetate,and the obtained thiol-modified PAMAM was characterized by FT-IR spectrometer,Raman spectrometer,()~1H-NMR and element analysis.Based on the complexation of silver ions with terminal thiol groups,nano-silver colloids were prepared through reduction of AgNO_3 with NaHB_4 in the pre-(sence) of thiolmodified PAMAM as a stabilizer.The dispersibility and stability of nano-sliver colloids was investigated by UV-Vis...