The use of solubility parameters in characterization of titanate modified silica gel by inverse gas chromatography

2000 ◽  
Vol 51 (9-10) ◽  
pp. 608-614 ◽  
Author(s):  
A. Voelkel ◽  
T. Grzeskowiak
Keyword(s):  
Gas Chromatography ◽  
Silica Gel ◽  
Inverse Gas Chromatography ◽  
Solubility Parameters ◽  
Modified Silica ◽  
Modified Silica Gel

scholarly journals Preparation of Silica Modified with 2-Mercaptoimidazole and its SorptionProperties of Chromium(III)

2009 ◽  
Vol 6 (1) ◽  
pp. 141-150 ◽  
Author(s):  
Harry Budiman ◽  
H. K. Fransiska Sri ◽  
Achmad. H. Setiawan
Keyword(s):  
Heavy Metal ◽  
Water Sample ◽  
Silica Gel ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Batch Mode ◽  
Supporting Material ◽  
The Fourier Transform ◽  
Surface Silica

Modified silica gel was prepared to remove the heavy metal of chromium(III) from water sample. Silica gel was used as supporting material and the 2-mercaptoimidazole was immobilized onto surface silica so that the silica would have selective properties to adsorb the heavy metal chromium(III) through the formation of coordination compound between the 2-mercaptoimidazole and chromium(III). The characterization of modified silica gel was carried out by analyzing the Fourier Transform Infrared Spectrum of this material in order to ensure the immobilization of 2-mercaptoimidazole onto the surface. The effect of pH solution, initial concentration of chromium(III), and interaction time were investigated in batch mode to find the adsorption properties of chromium(III) onto modified silica. The condition optimum of these parameters was applied to determine the removal percentage of chromium(III) in water sample using the modified silica gel

The Use of Flory-Huggins Parameters in Characterization of Polymer-Filler Compositions

2008 ◽  
Vol 587-588 ◽  
pp. 667-671 ◽  
Author(s):  
Kasylda Milczewska ◽  
Adam Voelkel
Keyword(s):  
Gas Chromatography ◽  
Infinite Dilution ◽  
Inverse Gas Chromatography ◽  
Volatile Component ◽  
Modified Silica ◽  
Polymer Systems ◽  
Polymer Filler ◽  
Silica Filler ◽  
Polymer Interactions

Inverse gas chromatography (IGC) has been applied to observe the interactions in filled polymer/organic solvent as well as modified filler/polymer systems under conditions approaching infinite dilution of the volatile component. In our study we will show that the Flory-Huggins theory is useful in the characterization of the interaction in polymer-filler systems. Authors propose to express the magnitude of modified filler/polymer interactions by Flory–Huggins ' 23 χ parameter. We examined the series of compositions of polyethylene (M= 35000) with different amount of modified silica filler (5, 10, 20 % wt).

scholarly journals Synthesis and characterization of modified silica gel as an intermediate in the generation of gaseous standard mixtures

1997 ◽  
Vol 44 (9-10) ◽  
pp. 484-490 ◽  
Author(s):  
M. Prokopowicz ◽  
K. Lewandowska ◽  
A. Skwierawska ◽  
A. Przyjazny ◽  
J. F. Biernat ◽  
...  
Keyword(s):  
Silica Gel ◽  
Synthesis And Characterization ◽  
Modified Silica ◽  
Modified Silica Gel

Characterization of Modified Silica Gel as a Source of Ethene for Standard Gaseous Mixtures

1998 ◽  
Vol 59 (3) ◽  
pp. 437-447 ◽  
Author(s):  
M. Prokopowicz ◽  
A. Przyjazny ◽  
Y. Szczygelska-Tao ◽  
J.F. Biernat ◽  
J. Namieśnik
Keyword(s):  
Silica Gel ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Gaseous Mixtures

scholarly journals Characterization of Salt-Modified Silica Gel Coated with Disodium Hydrogenphosphate as an Adsorbent for Gas-Solid Chromatography.

1995 ◽  
Vol 11 (2) ◽  
pp. 303-305
Author(s):  
Kunishige NAITO ◽  
Yasukiyo EJIRI ◽  
Sadaaki MORIGUCHI ◽  
Shinsuke TAKEI
Keyword(s):  
Silica Gel ◽  
Modified Silica ◽  
Modified Silica Gel
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