Xps - study of the interfacе layer «pollady - polyacrylamide» depending on the polymerization conditions

Investigate the structure of interface layers «Pd - acrylamide polymer» depending on the polymerization conditions. X-ray photoelectron spectroscopy method shown in the step of solid phase synthesis of the monomeric complex of palladium nitrate and acrylamide interaction between components is through the oxygen atom of the carbonyl group of acrylamide, that practically does not change the charge on an atom Pd. Frontal polymerization monomer complex leads to the formation of clusters of zero-valent Pd, immobilized in a polymer matrix. When hydrogenation polymeric complex Pd clusters are released from the sheath, their content in the surface layer increases, which provides them with the catalytic efficiency of cyclohexene hydrogenation reactions. The use of carbon black as a carrier restricts interaction between Pd nitrate and acrylamide at the stage of solid-phase synthesis. In frontal polymerization soot continues to inhibit the formation of clusters of zero-valent Pd. In the hydrogenation of the polymer complex with carbon black, zero-valent Pd clusters are formed in the surface layers, possibly representing nanosized particles. However, their concentration in the surface layer of an order of magnitude less than the case without soot that causes low catalytic properties of the composition.