Netsu Sokutei
Online ISSN : 1884-1899
Print ISSN : 0386-2615
ISSN-L : 0386-2615
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Volume 14, Issue 3
Displaying 1-5 of 5 articles from this issue
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  • Thermal Analysis of Reduction Process of Lanthanum Strontium Iron Perovskite Oxides with Carbon Monoxide and Hydrogen
    Takashi Shimizu, Teruo Nagao, June Fukushima
    1987 Volume 14 Issue 3 Pages 95-101
    Published: August 15, 1987
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.14.95
    JOURNAL FREE ACCESS
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    Reducible behaviours of La1-xSrxFeO3-δ(0≤x≤1.0)perovskite oxides in CO or H2 atmosphere were studied by means of thermogravimetry (TG), differential scanning calorimetry (DSC), pulse reaction method, infrared spectrometer (IR), X-ray diffractometer (XRD) and X-ray microanalyser (EPMA). Interactions with CO or H2 and oxygen on surface gave a large weight loss which increases with increasing x in all ranges of x in the temperature range of 525-725K.
    Reaction with CO and reduced surface formed carbon and/or carbonaceous species with the increase in weight which is strongly dependent on gas phase CO pressure in the temperature range of 775-1125K. These reactions proceeded exothermally. It was concluded that the disproportionation reaction of CO and the formation of SrCO3 occur more easily at both higher x values and CO pressure in the course of decomposition of La1-xSrxFeO3-δ.
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  • Thermal Properties of Polymers Having Aromatic Rings in the Main Chains
    Studies on the Polymers Related to Lignin
    Shigeo Hirose, Hyoe Hatakeyama
    1987 Volume 14 Issue 3 Pages 102-108
    Published: August 15, 1987
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.14.102
    JOURNAL FREE ACCESS
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    Thermal properties of polymers having aromatic rings related to lignin were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The relationship between chemical structures and thermal properties of polymers was discussed from the viewpoint of molecular design. It was found that thermal properties such as crystallization, relaxation in the glassy state and thermal decomposition temperature could be controlled by the appropriate arrangements of chemical bonds and functional groups such as phenylene group, methoxyl group, alkylene group and etc.
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  • Anesthesia and Its Thermal Analysis
    Kenji Tasaka, Mitsunobu Mio
    1987 Volume 14 Issue 3 Pages 109-120
    Published: August 15, 1987
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.14.109
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    Because of the structural diversity, it is thought that the general anesthetics act nonspecifically to alter the physico-chemical properties of the cell membrane, rather than to stimulate the process taking place via specific receptors. It was indicated in Meyer-Overton theory that the relative potency of the anesthetics was closely related to the solubility of the drug in oil and that the biophysical events are fundamental to exert the anesthetic action. Subsequently, the other mechanisms of anesthesia based on the biophysical standpoint have been proposed. At the present time, it is well recognized that the interaction between anesthetics and the phospholipid bilayers of the cell membranes may cause the alteration of physical properties of the membrane which is essential to induce anesthesia. The thermal analysis, performed by means of differential scanning calorimetry (DSC), made an important contribution to elucidate the mechanism of interaction between anesthetic molecules and phospholipid bilayers. In this review, the historical background and the application of DSC for the analysis of anesthetic action are discussed.
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  • Photoacoustic Method for Measurement of Thermal Diffusivity
    T. Hashimoto
    1987 Volume 14 Issue 3 Pages 121-124
    Published: August 15, 1987
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.14.121
    JOURNAL FREE ACCESS
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  • Pore Size Distribution Measurements by Differential Scanning Calorimeter
    K. Ishikiriyama, M. Todoki
    1987 Volume 14 Issue 3 Pages 125-126
    Published: August 15, 1987
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.14.125
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