Differential Scanning Calorimetry

Differential scanning calorimetry (DSC) is an important measurement to characterize thermal properties of materials. DSC is used primarily to calculate the amount of heat stored in a material as it heats up (heat capacity) as well as the heat absorbed or released during chemical reactions or phase c...

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Detalles Bibliográficos
Autor principal: Beatty, Danielle N. (-)
Formato: Video
Idioma:Inglés
Publicado: Cambridge, MA : MyJoVE Corp 2016.
Colección:JOVE Science Education.
Materials Engineering.
Acceso en línea:Acceso a vídeo desde UNAV
Ver en Universidad de Navarra:https://innopac.unav.es/record=b42109498*spi
Descripción
Sumario:Differential scanning calorimetry (DSC) is an important measurement to characterize thermal properties of materials. DSC is used primarily to calculate the amount of heat stored in a material as it heats up (heat capacity) as well as the heat absorbed or released during chemical reactions or phase changes. However, measurement of this heat can also lead to the calculation of other important properties such as glassy transition temperature, polymer crystallinity, and more. Due to the long, chain-like nature of polymers it is not uncommon for polymer strands to be entangled and disordered. As a result, most polymers are only partially crystalline with the remainder of the polymer being amorphous. In this experiment we will utilize DSC to determine polymer crystallinity.
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Descripción Física:1 recurso electrónico (722 seg.) : son., col
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Público:Para estudiantes universitarios, graduados y profesionales.