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Studies in the history and development of thermogravimetry
III. The influence of Kotaro Honda and the Japanese school
The emergence of chemistry in Japan is briefly discussed, followed by a detailed description of the Honda thermobalance and the results obtained. The paper concludes with a short biography of Honda, together with a collection of photographs depicting Honda's private and professional life.
capacity of thermal exchange between sample and temperature sensors, which in turn have to transmit the signal to the recording devices. Leiva [ 12 ] used thermogravimetry to determine the activation energy of combustion of fuel oils and compared the
2543 Thermogravimetry/differential thermal analysis (TG/DTA) experiments were carried out on Netzsch STA 449 F3 Jupiter (Selb, Germany). Samples of 19–26 mg were heated with
Non-isothermal thermogravimetry of polymer
I. General model involving formal termination of active centres
A Model of polymer decomposition is proposed which formally involves the termination of active centres. It yields reasonable activation energies for the decompositions of polypropylene, polyethylene, polystyrene and polymethyl methacrylate investigated by non-isothermal thermogravimetry. In the value of a formal reaction orders the model reflects the reaction conditions, such as initial sample weight, atmosphere, ventilation conditions, sample holder nature and shape, etc.
characterization was done by X-ray diffractometry (XRD), infrared (IR) spectroscopy, thermogravimetry (TG) and nuclear magnetic resonance ( 29 Si NMR). The chemical stability was implemented for pH varying at 1.0–6.0. Methods and materials
evaluate of the vapor pressure of the curves of warifteine and methylwarifteine using thermogravimetry analysis. Methods and materials Methylparaben (reference) was purchased from Dinalab (NF00222). Warifteine and
Investigation of polymers by a novel analytical approach for evolved gas analysis in thermogravimetry
Gas chromatography comprehensively coupled to single photon ionization mass spectrometry
Introduction Thermal analysis (TA) is a valuable technique for chemical and material analysis as well as for industrial process control. Measured variables as a function of temperature comprise mass loss [thermogravimetry (TG
of the samples using kinetic approach for non-isothermal thermogravimetry. At the moment, low-rank coals are classified according to gross calorific value (GCV) on moist , mineral - matter - free ( mmf ) basis, and high-rank coals according to
CAL material for calorimetry, CAL/extra material used for additional experiments to investigate the effect of the dilution effect, TG material for thermogravimetry, TG/a measurements at an age <2 days, TG/b measurements at an age >2 days
, AS , Barros , JMF , Pedrosa , AMG , VJ Fernandes Jr , Souza , MJB . Thermogravimetry applied to characterization of SBA15 nanostructured material . J Therm Anal Calorim . 2007 ; 87 : 457 – 461 . 10.1007/s10973
