Authors:Danuta Pentak, Wiesław W. Sułkowski, and Anna Sułkowska
applications, the main characteristics include the encapsulation efficiency, the ratio of phospholipids to encapsulant concentration, and the temperature of phasetransition ( T c ).
When lipid bilayers prepared from pure one-component phospholipids are
Authors:A. Sykuła-Zając, E. Łodyga-Chruścińska, B. Pałecz, R. E. Dinnebier, U. J. Griesser, and V. Niederwanger
Exothermic phasetransition was observed at above 150 °C (after the dehydration process) on the DSC curve at 10 °C min −1 . The transition starts and ends at 170.80 and 210 °C, respectively (see inset in Fig. 2 ). The phasetransition ( E exo = −5.2 mW
Authors:Concepción Foces-Foces, María Victoria Roux, Rafael Notario, and Marta Segura
ambient [ 16 , 17 ] and at low temperature [ 18 ] and at high pressures [ 19 ]; however, no solid–solid phasetransition has been detected.
Earlier heat capacities of samples of l -cysteine and l -cystine were measured in the temperature range
Authors:Sergey V. Ushakov, Divya Nag, and Alexandra Navrotsky
sample in air to the enthalpy of the β–α phasetransition in quartz on cooling the same sample. Quartz (Qz, SiO 2 ) is the most commonly found mineral on the Earth's surface and is ubiquitously present in soils [ 16 , 17 ]. On heating at ambient pressure
Authors:G. Janowska, A. Kucharska-Jastrzabek, W. M. Rzymski, and A. Pajak
The article describes the measurements results of the thermal properties of cross-linked blends of butadiene–acrylonitrile rubber (XNBR, Krynac X.7.50) and chlorosulfonated polyethylene containing different quantity of combined chlorine (CSM24—Hypalon 48, CSM29—Hypalon 20, CSM35—Hypalon 40, and CSM43—Hypalon 30) under inert gas (DSC) and in air (derivatography). The blends were non-conventionally cross linked at a temperature of 150 °C by means of MgO in the presence of stearic acid. The thermal curves obtained were interpreted from the point of view of phase transitions and chemical reactions of the macromolecular components used. It has been found that the elastomers investigated show a good compatibility brought about by the formation of both interpolymeric covalent bonds and interpolymeric and intrapolymeric ionic bridges, which play the role of a chemical compatibilizer. The results of the examinations performed show that the non-conventional cross-linked XNBR/CSM blends prove very good mechanical properties and are self-extinguished in air. Their flammability defined with the value of OI and combustion time in air clearly depends on the type of CSM.
Differential scanning calorimetry (DSC) is extensively used in chemistry and physics to analyze, e.g. phasetransitions of different compounds [ 1 , 2 ]. Recently this technique has been used with increasing
Authors:Dariusz Szychowski, Barbara Pacewska, Grzegorz Makomaski, Janusz Zieliński, Wiesława Ciesińska, and Tatiana Brzozowska
. Obtained DSC curves allowed determination of the phasetransition temperatures: glass transition temperature, melting temperature, the onset of crystallization temperature, and the onset of decomposition temperature.
Measurement parameters were
Authors:Maria Marudova, Stanko Stankov, and Marianna Baeva
storage, studies by DSC It is clear from the obtained DSC curves, that the temperature interval (Δ T ) and the enthalpy (Δ H ) of the endothermic phasetransition determine the degree of sponge cakes stalling during the storage. No endothermic phase
Authors:Dorota Majda, Wacław Makowski, and Maria Mańko
related to the size of the pore, in which the liquid is trapped [ 15 ].
A liquid to solid phasetransition requires formation of crystallization nuclei. In fact, such a nucleus must reach a critical radius, which allows it to start the growth of