Kinetic thermometric methods in analytical chemistry

Synthesis of polydicyclopentadiene using the Cp2TiCl2/Et2AlCl catalytic system and thin-layer oxidation of the polymer in air

“…Based on the assumption that the stage of chain growth proceeds as a pseudo-first order reaction, for every experiment, we calculated the observed reaction constant using the experimental curve in semi-logarithmic coordinates (Fig. 5) [24]. The value of the observed constant of DCPD polymerization rate in the toluene solution applying the catalyst system amounts to 0.011 mol −1 ∙s −1 .…”

“…Polymerization of DCPD in toluene was carried out in a 100 mL adiabatic mixing reactor [31]. A thermometric method was used to study the kinetics of the process, which was carried out in adiabatic conditions with minor temperature change; hence, the thermometric curve is at the same time a kinetic plot [24]. The temperature was registered during the process with a digital thermometer, consisting of a platinum thin film resistance thermometer placed on a ceramic substrate and placed in a stainless steel thin-wall case.…”

Complexities associated with nucleation of water and ice from jet fuel in aircraft fuel systems: A critical review

“…Thermometric titration is an analytical method that measures the content of a particular substance because of an enthalpy change [101]. In this method, the titrant is added continuously into the reactant.…”

Chemical Derivatization in Flow Analysis

“…Chemical derivatization is also usual in gas chromatography, aiming the formation of more volatile species, thus expanding the analytical applicability of the technique [ 9 ]. In flow analysis, different detection techniques, e.g., atomic spectrometry [ 10 ], enthalpimetry [ 11 ], amperometry [ 12 ], turbidimetry/nephelometry [ 13 ], and gravimetry [ 14 ], have been associated to chemical derivatization. Nevertheless the process is more usual in relation to spectrophotometry and luminescence [ 15 ].…”

“…The processes involved in the product formation in a chemical derivatization are also of interest in some applications, such as in kinetic analytical methods (item 4.1). Moreover, variations of physicochemical properties, such as the heat release in enthalpimetry [ 11 ] and light emission in chemiluminescence [ 15 , 39 ], may also provide useful information.…”