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The thermal degradation of poly(ditetrahydrofurfuryl itaconate)
(Elsevier, Amsterdam, 2001)
The goal of this investigation was to study the thermal degradation of poly(ditetrahydro-furfuryl itaconate) (PDTHFI) by thermogravimetry (TG). The monomer was polymerized in bulk at 40 degreesC using AIBN as initiator. ...
Identification of adsorption kinetics with dual mechanisms by nonlinear frequency response method
(Wiley-VCH Verlag Gmbh, Weinheim, 2001)
A characteristic example of the inability of the classical linear frequency response (FR) method to identify the correct kinetic mechanism is adsorption of n-hexane on silicalite-1. The linear FR has resulted in bimodal ...
Computational studies in the AlPO4-34 system
(Kluwer Academic Publ, Dordrecht, 2001)
The lattice energies of the as-synthesized fluoride-containing chabazite-like aluminophosphate (AlPO4-34F) and of the corresponding metal-substituted materials [MeAPO-34F, Me = Mn(II), Co(II), Ni(II)] have been calculated ...
Fractal approach to ac impedance spectroscopy studies of ceramic materials
(Kluwer Academic Publ, Dordrecht, 2001)
A novel fractal model for grain boundary regions of ceramic materials was developed. The model considers laterally inhomogeneous distribution of charge carriers in the vicinity of grain boundaries as the main cause of the ...
Synthesis and characterization of thermoplastic poly(ester-siloxane)s
(Wiley-Blackwell, 2001)
Two series of thermoplastic poly (ester-siloxane)s, based on poly(dimethylsiloxane) (PDMS) as the soft segment and poly(butylene terephthalate) as the hard segment, were synthesized by two-step catalyzed transesterification ...
HPLC behavior and hydrophobic parameters of some anilides
(Springer Heidelberg, Heidelberg, 2001)
The chromatographic behavior of para substituted anilides of 2,2-dimethylpropanoic, benzoic and alpha -phenyl acetic acid has been studied by reversed-phase high performance liquid chromatography HPLC was performed on a ...
Influence of synthesis parameters on the particle sizes of nanostructured calcium-hydroxyapatite
(13th international Symposium on Ceramics in Medicine (BIOCERAMICS), 2001)
In this paper the synthesis of biocompatible calcium-hydroxyapatite particles, chemically and morphologically similar to the mineral particles in human bones, is presented. The influence of synthesis parameters: temperature, ...
On the thermal decompositions of the trivalent trioxalato complexes of Al, Cr, Mn, Fe and Co
(Springer, Dordrecht, 2001)
The thermal decompositions of the complexes K-3[M(ox)(3)]. 3H(2)O (M=Al, Cr, Mn, Fe, Co; ox=C2O42-) were studied. Dehydration of the complexes occurs up to 200 degreesC, this being a three-step process for M=Al, Cr, Mn and ...
Rietveld refinement of a chabazite-like aluminophosphate containing a [Ni(1,2-diaminoethane)(2)O-2](2-) complex bridge
(Elsevier, Amsterdam, 2001)
The crystal structure of a novel Ni-containing precursor to the molecular sieve AlPO4-34 (CHA framework type) has been determined in its as-synthesized form using high-resolution synchrotron powder diffraction data. One ...
Determination of activation energy for static recrystallization using multipass continuous cooling torsion test
(Springer-Verlag Berlin, Berlin, 2001)
Two microalloyed steels (Nb/Ti low carbon and V medium carbon) were tested by means of continuous cooling multipass tests on high temperature torsion tester, with aim to investigate the recrystallization kinetics. Multistage ...