Coligomerization of Styrene and a-Methylstyrene Catalyzed by y Zeolites

It is ascertained that during the interaction of styrene and -methylstyrene in the presence of cation and cation-decationated forms of zeolite Y the activity of zeolite catalysts increases in the following order: NiNaY CaNaY <LaNaY 0,5 NY <La Y <NiHY 0,96 Y. The product of reaction in the presence of cation forms of zeolite (NiNaY, CaNaY, LaNaY) is a mixture of low-molecular (n=2 - 4) and high-molecular oligomers (n=14). Oligomers with the degree of oligomerization 2 - 8 are formed in the presence of other zeolite samples. Zeolites 0,96 Y and NiHY allow to receive gomo - and codimers with selectivity 68-80%. The main product of codimerization is cyclic dimer 1,1 – dimethyl – 3-phenylindane

BIOLOGICAL EFFECTS OF THE NEW SILVER-CONTAINING POLYMER NANOCOMPOSITE

In the materials there are presented, results of the synthesis and biological testing of the new nanocomposite which, contains silver nanoparticles incapsulated. in the synthetic polymer poly-1-vinyl-1,2,4-triazole. The synthesis method, of silvercontaining polymere nanocomposite is shown. With the use of modern equipment evidence of the nanocomposite with the size of 2-10 nm silver production, are substinated. It was revealed, that the new nanocomposite causes slight changes in the tissue structure of experimental animals internal organs and biochemical shift that is characteristic for the compensatory-adaptive reactions development. There are presented, the results of the silver nanoparticles distribution, mainly in the kidney and. liver tissue