2002
DOI: 10.1590/s0100-40422002000200023
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O estado vítreo dentro da perspectiva do curso de graduação em química (físico-química)

Abstract: Recebido em 30/3/01; aceito em 12/9/01 GLASSY STATE ON THE UNDERGRADUATE COURSE IN CHEMISTRY (PHYSICAL CHEMISTRY). We consider the relevance of the study of the glassy state properties and the glass transition as important topics of the physical chemistry for undergraduate courses of Chemistry. Two of the most important theoretical approaches for the description of the glassy state, the thermodynamic and the kinetic models, are summarized with emphasis on the physical chemistry aspects. Examples illustrating t… Show more

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Cited by 9 publications
(12 citation statements)
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“…Ozonolysis of sunflower oil was performed in the presence of water, producing compounds capable of interacting with each other and with water molecules by way of hydrogen bonds. 47,48 Glass transition was followed by an endothermic peak corresponding to melting temperatures from -30 to 12 °C and a fusion heat (ΔH) of 19.78 J g -1 .…”
Section: Differential Scanning Calorimetrymentioning
confidence: 99%
“…Ozonolysis of sunflower oil was performed in the presence of water, producing compounds capable of interacting with each other and with water molecules by way of hydrogen bonds. 47,48 Glass transition was followed by an endothermic peak corresponding to melting temperatures from -30 to 12 °C and a fusion heat (ΔH) of 19.78 J g -1 .…”
Section: Differential Scanning Calorimetrymentioning
confidence: 99%
“…__________________________________________ Figura 16. Curvas tempo-temperatura: (a) água pura, (b) um alimento (ZARITZKY, 2000). _________ Figura 17.…”
Section: Lista De Figurasunclassified
“…____ Figura 28. Curvas obtidas por DSC: a) fusão do índio b) fusão do PE c) Tg do PVAc (YAMAKI et al, 2002). _____________________________________________________________________ Figura 29.…”
Section: Lista De Figurasunclassified
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