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Abstract  

Results on the preparation and thermoanalytical investigation of aliphatic bismaleamic acids and bismaleimides are presented. Correlations were established between the chemical structure and the thermal properties. The melting point and the thermal stability of the bismaleimides decrease as the number of carbon atoms in the structure increases. Chemically imidized samples have significantly higher thermal stability, which is almost independent of the chemical structure. Thermal polymerization begins just after the melting of the materials. A thermal fragmentation scheme is proposed, based on the results of mass spectrometry.

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Journal of Thermal Analysis and Calorimetry
Authors: F. Xu, L. Sun, J. Zhang, Y. Qi, L. Yang, H. Ru, C. Wang, X. Meng, X. Lan, Q. Jiao, and F. Huang

Abstract  

Heat capacities of the carbon nanotubes (CNTs) with different sizes have been measured by modulated temperature differential scanning calorimetry (MDSC) and reported for the first time. The results indicated the values of C p increased with shortening length of CNTs when the diameters of CNTs were between 60 and 100 nm. However, the values of C p of CNTs were not affected by their diameter when the lengths of CNTs were 1–2 um, or not affected by the length of CNTs when their diameters were below 10 nm. The thermal stabilities of the CNTs have been studied by TG-DTG-DSC. The results of TG-DTG showed that thermal stabilities of CNTs were enhanced with their diameters increase. With lengths increase, the thermal stabilities of CNTs increased when their diameters were between 60 and 100 nm, but there is a slight decrease when their diameters were less than 60 nm. The further DSC analyses showed both released heat and T onset increased with the increase of CNTs diameters, which confirms the consistency of the results from both TG-DTG and DSC on CNTs thermal stability.

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blockers, etc. [ 9 – 11 ]. The reports about the synthesis of PANI/CeO 2 composite have been found [ 12 , 13 ]. However, survey of the literature reveals that thermal stability and degradation behavior of the composite have not been studied

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Journal of Thermal Analysis and Calorimetry
Authors: R. A. Candeia, F. S. M. Sinfrônio, T. C. Bicudo, N. Queiroz, A. K. D. Barros Filho, L. E. B. Soledade, I. M. G. Santos, A. L. Souza, and A. G. Souza

composition (free and total glycerin, iodine index, mono-, di-, and triacylglycerides, etc.) [ 7 ]. Several studies have been carried out in order to monitor the biodiesel quality during storage in different conditions [ 8 – 12 ]. Storage stability may

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Markakis, P. (1982): Stability of anthocyanins in foods. -in: Markakis, P. (Ed.): Anthocyanins as food colors . Academic Press, New York, pp. 163–180. Markakis P

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central-station generation. Integration of large quantities of wind power has, however, presented some challenges such as absorption of reactive power from the grid during faults, which affects system stability in weak power grids. Power generation using

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semi-arides. (Yield stability analysis of durum wheat ( Triticum durum Desf.) under semi-arid conditions). Biotechnol. Agron. Soc. Environ. , 14 , 177–186. Bouzerzour H. Analyse de

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Bell , L.N. (2007): Moisture effects on food’s chemical stability.- In : Barbosa-Canovas , G.V., Fontana , A.J., Schmidt , S.J. & Labuza , T.P. (Eds): Water activity in foods: fundamentals and applications . Blackwell Publishing and the Institute

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Journal of Thermal Analysis and Calorimetry
Authors: Rosiane M. C. Farias, Marta M. Conceição, Roberlúcia A. Candeia, Marta C. D. Silva, Valter J. Fernandes Jr., and Antonio G. Souza

]. The aim of this study was to evaluate biodiesel blends of passion fruit and castor oil in different proportions, determining physical–chemical properties and its thermal stability. Experimental Pre-treatment of

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References [1] Melnikovaa N. B. , Krzhizhanovskayaa V. V. , Sloot P. M. A. Modeling earthen dike stability, Sensitivity

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