KINETIC ASPECTS OF INTERACTION BETWEEN NANOPARTICLES AND VERY LONG POLYMER CHAINS:
GOLD PARTICLES - POLYACRYLAMIDE SYSTEM
W. Nowicki
Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka ul. 6,
60-780 Poznan, Poland, e-mail: gwnow@main.amu.edu.pl
The introduction of very-high-molecular weight polyacrylamide (PAAm) into the hydrosol of nanosized gold particles initiates the process of aggregation between particles and macromolecules. A single macromolecule can attach a number of particles forming a multiplet. This number depends on the ratio between the particle and the polymer c Continue Reading »
INVESTIGATIONS ON THE POROSITY STRUCTURE
OF MINERAL-CARBON SORBENTS
B. Pacewska, D. Szychowski
Warsaw University of Technology Faculty of Building Engineering, Mechanics, and Petrochemistry, Institute of Chemistry,
ul. Lukasiewicza 17, 09-400 Plock, Poland
Adsorption and catalytic processes play a substantial role in many branches of modern technology. Among many applications of adsorption in unit processes also its importance in the removal of chemical pollutants from liquid wastes is often appreciated.
Active carbon is an adsorbent, which has been the most frequently a Continue Reading »
DETERMINATION OF THE COMPOSITION
OF ELECTROCHEMICALLY ACTIVE COMPLEXES
ON AN ELECTRODE
V.S. Kublanovsky
Institute of General and Inorganic Chemistry, Ukrainian National Academy of Sciences, Palladina avenue 32-34, 03680 Kiev-142, Ukraine,
e-mail: kublanovsky@ionc.kar.net
One of the most important problems of modern electrochemistry is the elucidation of the mechanism electrode processes and chemical stages which accompany the formation of electrochemically active complexes (EAC) on an electrode.
The present-day concepts of the discharge of coordination compounds are based on the fact Continue Reading »
studies of energetical and geometrical heterogeneity of solid surfaces
by thermal analysis
V.V. Kutarov2, M. Planda1, P. Staszczuk1,
1Department of Physicochemistry of Solid Surface, Faculty of Chemistry,
Maria Curie-Sklodowska University,
Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland
2Physical Research Institute, Odessa I.I. Mechnikov National University, Pastera st. 27, 65026 Odessa, Ukraine
Energetic heterogeneity of sorbents is conditioned by the differences in topology of adsorption centres, dispersion of pore sizes and other factors [1]. The p Continue Reading »
THE PROPERTIES OF THE ION-SELECTIVE ELECTRODE
WITH A PSEUDO-LIQUID POTENTIAL CREATING PHASE
IN KETOPROEN DETERMINATION
B. Marczewska, J. Lenik
Department of Analytical Chemistry and Instrumental Analysis, Faculty of Chemistry, Maria Curie-Sklodowska University,
Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland
The aim of the research was to create an electrode with a pseudo-liquid membrane phase with ketoprofen function on the basis of PVC as well as to establish its analytical parameters. The active substance of the liquid membrane phase was the ion pair type complex: Continue Reading »
INVESTIGATION OF PALYGORSKITE ADSORPTION AND KINETIC PROPERTIES WHILE RECLAIMING TRANSFORMATER OILS
I.I. Martsin1, O.O. Solovyova1, M.I. Vykhrestyuk2
1F.D. Ovcharenko Institute of Biocolloidal Chemistry, Ukrainian National Academy of Sciences, Kyiv, Ukraine
2Research and Designing Institute of Petroleum Chemistry "Masma",
Kyiv, Ukraine
By the chromatographic method the change in structure – group and homological composition of transformer oils before and after reclamation using the adsorption method applying the natural sorbents in the natural and acidic-active state has been Continue Reading »