Category Archives: Year 2013 Issue 9

KRZYŻANOWSKA A., MILCHERT E.
Apparatus and methods of dechydrochlorination of 1,3-dichloropropan-2-ol, reaction times in the pre-reactor and reactor

Please cite as: CHEMIK 2013, 67, 9, 779?786

This paper presents the method of dehydrochlorination of 1,3-dichloropropan-2-ol to epichlorohydrin with a solution of milk of lime. The apparatus necessary for the process was described. The main elements of the system are as follows: pre-reactor, reactor, peristaltic pumps, re-boiler,...

MAKUCH E., WRÓBLEWSKA A.
Preparation of titanium-silicate Ti-SBA-15 catalyst

Please cite as: CHEMIK 2013, 67, 9, 811?816

Ti-SBA-15 catalyst was synthesised using the literature data (original modifications related to deionised water amount used in the synthesis process of those materials and to the method of adding tetraethyl o-silicate (TEOS) and tetraisopropyl o-titanate were introduced). During synthesis, the molar ratio of Si to Ti in crystallisation gel...

Krzyczmonik P Socha E.
Electrodes modified with composite layers of poly(3,4-ethylenedioxythiophene) (PEDOT) and polyaniline (PANI) for applications in bioelectroanalysis

Please cite as: CHEMIK 2013, 67, 9, 801?810

This paper provides an overview and characterization of composite electrode materials built on the basis of polyaniline and PEDOT. Properties of described conducting polymers and various types of composite materials obtained from them have been presented. Also the applicability...

OSIŃSKA-BRONIARZ M., WASZAK D., KOPCZYK M.
Ion-exchange membranes for low-temperature fuel cells

Please cite as: CHEMIK 2013, 67, 9, 793?800

The paper presents method for obtaining anion-exchange polymer membrane based on polyetherimide. The studies have shown that obtained alkaline anion-exchange membrane is thermally stable and has high specific conductance that allows to use such membranes as solid electrolytes in fuel cells in practice.

keywords: alkaline anion-exchange...

MAKOMASKI G., ZIELIŃSKI J., CIESIŃSKA W.
Study on the preparation of activated carbons from pitch-polymer compositions

Please cite as: CHEMIK 2013, 67, 9, 787?792

In this work, the results of studies of the use of pitch-polymer compositions as new precursors of activated carbons, were presented. The method and optimal parameters of preparation homogeneous and stable pitch-polymer compositions, were determined. Basing on the results of softening point...

SOCHA J., MAZIARKA A., JASIŃSKI R.
Trifluoromethylated alkenes in [2+3] cycloaddition reactions with nitrones

Please cite as: CHEMIK 2013, 67, 9, 771?778

Fluoroorganic compounds, including molecules containing a trifluoromethylene group, are an object of intensive tests because of their unique properties. Taking into account the fact that fluorine in the form of organic compounds is extremely rare in the environment, organic synthesis becomes the fundamental source of...

HAN S., WANG J., ZHANG H., PAN S., XV H., WANG Y., SHEN CH. Growth and optical properties of Er3+-doped BaGd2(MoO4)4 crystal

Please cite as: CHEMIK 2013, 67, 9, 763?770 A 1 at% Er3+ doped BaGd2(MoO4)4 single crystal was grown by the Czochralski method. Details on the preparation and growth procedures were discussed. The crystal has a perfect (010) cleavage plane, and the cleavage character makes the crystal suitable as...