CHEMICAL PROBLEMS
CATALYTIC ACTIVITIES OF MORDENITE ZEOLITE CATALYSTS MODIFIED BY Pd2+, Ni2+, Co2+, Nd3+CATIONS IN DISPROPORTIONATION REACTION OF TOLUENE
THE CHELATING POLYIMINE BASED ON P-PHENYLENEDIAMINE AND GLYOXAL
Abstract Condensation of p-phenylenediamine and glyoxal at a molar ratio of 1: 1 made it possible to synthesize a new polyimine with chelating ability. The complexation of this polyimine with transition metals was studied and the composition and structure of the complexes obtained were explored by means of IR, electron spectroscopy, EPR, derivatography, and elemental […]
EPOXY-CONTAINING ADDUCTS OF ROSIN ASLIGHT- AND THERMOSTABILIZERS FOR PVC
N-ALKOXYMETHYL DERIVATIVES OF 2-AMINOTHIAZOLE AND THEIR PROTECTIVE PROPERTIES
Abstract Conditions for alkoxymethylation of 2-aminothiazole with semiformals obtained by the interaction of aliphatic alcohols with formaldehyde were worked out. Alkoxymethylation was performed by means of preliminary preparation of the semiformal of appropriate hydroxyl- containing compounds followed by interaction of semiformal with equimolar amount of 2- aminothiazole. The structure of the obtained compounds was acknowledged […]
EFFECT OF ORGANIC AND FINE DISPERSER ADDITIONS ON RHEOLOGICAL PROPERTIES OF MINERAL SUSPENSIONS
WATER-DILUTING EPOXIDE TELOMER BASED ON DIBUTYL ETHER OF ADIPINIC ACID
Abstract A water-diluting epoxidetelomer was synthesized on the basis of allylglycidyl ether and dibutyl ether of adipinic acid under the effect of free radicals being generated during thermal decay of ditretbutyl peroxide. The reaction proceeds in one stage, the process is wasteless and fire-safe while the unreacted allylglycidyl ether returns to the reaction. The synthesized […]