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Properties of materials as determined by inverse gas chromatography

100%
Voelkel A., Adamska K.
|
2009
|
vol. 64
169-183
EN
The application of inverse gas chromatography (IGC) in the determination of the physicochemical properties of various materials is presented and discussed. The special attention is focused on the determination of solubility parameters.
2
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Surface modification of bioceramics by PEG grafting

81%
Adamska K., Woźniak M., Voelkel A.
|
2010
|
vol. 65
31-44
EN
Surface modification of Hydroxyapatite (HAp) and β-Tricalcium phosphate (β-TCP) powders was performed using hexamethylene diisocyanate (HMDI) as a coupling agent. Polyethylene glycol (Mw = 2000) was grafted to the surface of these ceramic materials. Different methods were used to characterize modified surfaces. Fourier transform infrared (FT-IR) and Attenuated Total Reflection Fourier Transform Infrared (FTIR/ATR) technique analyses confirmed the modification reaction on HAp and β-TCP surfaces. BET isotherm analysis showed the changes in textural properties of materials after modification. Elemental analysis was performed to confirm a presence of selected elements from modifier and coupling agent. Examination of dispersion stability of materials in different solvents show better stability for samples of β-TCP than HAp.
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