Published in Journal of Thermal Analysis and Calorimetry
Thermo-oxidative and thermo-mechanical stabilities of radiation-cured acrylates and epoxides were examined by TG, DMA and DSC. The polymeric trifunctional acrylates PETIA, TMPTA and THEIC displayed the highest temperatures of onset of degradation. The high crosslinking density of the films resulted in an almost temperature-independent complex E-mod...
Published in Journal of Thermal Analysis and Calorimetry
Within a research project, a new process for the recycling of soft-PVC waste has been developed. Additionally to the economic significance, the material is predestined to serve as a model system for plastics with high additive contents.
Published in Journal of Thermal Analysis and Calorimetry
Quasi-equilibrium thermogravimetry (with sample holders specially calibrated for the vapour pressure) was used for thermoanalytical screening of volatile compounds. ‘p-T’ relationships (in the range 0.0006 to 0.11 at) were obtained for acetylacetonates and fluoroacetylacetonates of Al, Cr and Zr. The incorporation of the trifluoromethyl group into ...
Published in Journal of Thermal Analysis and Calorimetry
The physicochemical characterization of the solid-state enantiomers and racemate of efaroxan hydrochloride (C13H17N2O+Cl-, M=252.5 g mol-1) was performed by thermoanalytical methods (differential scanning calorimetry, thermogravimetry and thermomicroscopy) and spectral methods (infrared spectrometry and X-ray diffractometry). The efaroxan enantiome...
Published in Journal of Thermal Analysis and Calorimetry
Subject of this paper is to investigate the hydration process of Portland limestone cement containing 10-35% limestone. Cements, produced by co-grinding of clinker, limestone and gypsum, were hydrated for periods 6 h to 28 d and were studied by means of TG and XRD. The Ca(OH)2 content of the cements containing limestone is higher than in pure cemen...
Published in Journal of Thermal Analysis and Calorimetry
The reactions occurring between CaCO3/CaO and SO2/SO3 in oxidizing atmospheres are discussed. Calcination and sulphation were carried out in a thermobalance under conditions relevant to atmospheric fluidized bed combustion. It is suggested that the quality of limestones as potential SO2 sorbents can be assessed on the basis of tests carried out in ...
Published in Journal of Thermal Analysis and Calorimetry
Four new theophyllinato (th) complexes of Co(II) and Ni(II) were synthesized containing ethanolamine (2-aminoethanol, ea) or benzylamine (ba). Comprehensive FTIR spectroscopic, powder XRD, magnetic and thermal studies on these mixed ligand complexes have been carried out to get structural information. The almost identical FTIR spectra and XRD patte...
Published in Journal of Thermal Analysis and Calorimetry
The thermal interactions of dolomite and calcite with calcium polyphosphates up to 1000°C were studied by thermal (dynamic heating and isobaric conditions) and X-ray diffraction methods. It was found that in mixtures with Ca-polyphosphates less than half of the carbonates reacted before decomposition to oxides with the phosphates. The rates of the ...
Published in Journal of Thermal Analysis and Calorimetry
Two combinations of simultaneous thermoanalytical techniques (TG+DTA and TG+EGA) were used to study the thermal decomposition of the title compound in order to gain a better insight into the spray pyrolytic processes leading to Cu2-xS and CuInS2 thin films. After dehydration a complex sequence of reactions starts above 220°C leading through several...
Published in Journal of Thermal Analysis and Calorimetry
Conventional thermogravimetric analysis (TG) uses constant heating rates to determine decomposition rates of a material and compositional analysis. Often, the decomposition steps can not be separated clearly enough due to parallel or consecutive reactions. If the reaction rates and the respective activation energies are enough different the TG reso...
