Kinetic characteristics of the destruction of β,β-annelated porphyrazines in a nitrogen-containing base–dimethylsulfoxide system

The state of tetra(1,2,5-thiadiazolo)porphyrazine in a dimethyl sulfoxide medium is investigated. Relatively high stability is observed for the resulting proton-transfer complex, and a chemical structure is proposed for it. It is shown that the nature of the substituent in the porphyrazine macrocycle influences the kinetic parameters of the destruction of tetra(1,2,5-thiadiazolo)porphyrazine, tetra(5-tert-butylpyrazino) porphyrazine, octaethyltetrapyrazinoporphyrazine, and octaphenyltetrapyrazinoporphyrazine in a nitrogen-containing base–dimethylsulfoxide system. The effect the NH acidity of the porphyrazine macrocycle and the nature of the nitrogenous bases have on the reaction rate and activation parameters of the destruction of β,β-annelated porphyrazine proton-transfer complexes is established.     

Immobilization of porphyrins on the surface of polypropylene films modified with acrylic acid

Russian Journal of General Chemistry - The process of immobilization of the aminoporphyrins: 5-(p-aminophenyl)-10,15,20-triphenylporphyrin (I), 5,10,15,20-tetra(p-aminophenyl)porphyrin (II),...     

Synthesis and Dissociation Kinetics of Zinc,Copper, Cobalt,and Manganese Complexes with 2,3,7,8,12,18-Hexamethyl-5-phenyl-13,17-diethylporphin and Its Nitro-Substituted Analogs in Proton-Donor Media

Russian Journal of General Chemistry - Nitro-substituted 2,3,7,7,8,12,18-hexamethyl-5-phenyl-13,17-diethylporphins with nitro groups in positions 10 and 20 of the porphyrin core and in the...     

Surface immobilization of indometacin for preparing polypropylene materials exhibiting biological activity

Russian Journal of Applied Chemistry - A procedure was proposed for the modification of the manganese-oxide catalyst hopcalite GFG allowing the new quality, water resistance of granules, to be...     

Surface modification of polypropilene by gentamicin

A possibility of the immobilization of gentamicin on the surface of the polypropylene materials activated by the aqueous solution of hydrogen peroxide is studied. The polymers modified by biologically active materials are mainly the polymers of medical designation. Their basic function is exerting a complex of therapeutic actions in all phases (inflammation, regeneration and epitalization). Such materials in essence are used for preparing surgical seam threads, ambulance means, fixing bandages, prostheses of internal organs and tissues, etc.     

Tetra-tert-butylphthalocyanine and Its Copper Complex in Surface Modification of Nonwoven Polymer Materials

Russian Journal of General Chemistry - Immobilization of tetra-tert-butylphthalocyanine and its copper complex on a chemically activated surface of nonwoven polypropylene and Dacron materials was...     

Immobilization of 5,10,15,20-tetrakis(4’-carboxyphenyl)porphyrin on the surface of a modified polypropylene film

The immobilization of 5,10,15,20-tetrakis(4’-carboxy-phenyl)porphyrin on the surface modified polypropylene films was investigated. To activate the surface of the polypropylene the method of structural-chemical modification of the acrylamide and polyvinyl alcohol developed, which can increase the number immobilizing porphyrin 15–20 times. Modified materials possess of antimicrobial activity.     

4-(8-quinolylazo)resorcinol and 1-(8-quinolylazo)-2-naphthol: Synthesis and sorption properties

A methodology of the synthesis of 4-(8-quinolylazo)resorcinol (QAR) and 1-(8-quinolylazo)-2-naphthol (QAN) was developed. The synthesized compounds were used to modify an oxidized charcoal sorbent. The sorbent efficiently adsorbs copper(II) and zinc(II) cations to form surface electroneutral chelate complexes. The conditions of sorption and desorption of zinc(II) and copper(II) were studied.     

Creatinine sorbents based on nonwoven polymeric materials modified with tetra(4-tert-butyl)phthalocyanine and zinc complex

The experimental results, which show the possibility of immobilization of tetra(4-tert-butyl)phthalocyanine complex and its zinc complex on the surface of nonwoven polypropylene and lavsan materials. The alkali etching method was used for activation of the polypropylene surface. It was shown that the modified polymeric materials possess sorption activity relative to creatinine.     

Surface modification of polypropylene materials by the cobalt complex of 5,10,15,20-tetrakis-(4-methylpyridyl)porphyrin tetratosylate

The process of immobilization of cobalt(II) 5,10,15,20-tetrakis(4-methylpyridyl)porphyrin tetratosylate on chemically activated surface of polypropylene materials was studied using infrared spectroscopy of multiple frustrated total internal reflection, electron spectroscopy, and atomic force microscopy. The modified materials were shown to have a sorption activity with respect to nitrogen bases, the structural analogs of blood toxines.