Key words: nanoparticles, supercritical СО2, impregnation, olygouretanmetacrilate, optical spectroscopy, UV irradiation
Synthesis of Ag nanoparticles in the matrix of cross-linked olygouretanmetacrilate
(OUM) impregnated with Ag(fod) molecules (fod = 6,6,7,7,8,8,8-heptafluor-2,2-dimethyl-3,5-octadionate) dissolved in supercritical carbon dioxide and ethanol was
studied using absorption spectroscopy and scanning electron microscopy. Size
distribution and concentration of Ag nanoparticles synthesized in polymer matrix is
controlled by polymer structure, solvent type and by processing conditions. Treatment
with hydrogen and UV irradiation of OUM samples impregnated with Ag(fod), causes
both significant rise of Ag nanoparticles concentration and particles size in polymer
matrix. The new approach to fabrication of optical structures (including microstructures)
from nanoparticles in polymers is suggested, based on combination of
polymer samples impregnation and UV irradiation.