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FTIR and DSC of polymer films used for packaging: LLDPE ...

1 FTIR and DSC of polymer films used for packaging : LLDPE , PP and PVDC John Petrovich SHAPE American High School Abstract: Polymers are compounds used in various materials. There are a plethora of methods used to analyze the composition and other properties of the material; these include Fourier Transform Infrared Spectroscopy (FTIR) and differential scanning calorimetry (DSC). The profiles of the DSC display varying melting peaks and glass transition regions for different samples. This indicates that DSC can be used to determine different qualities of polymeric materials which include, but are not limited to, high density character, low density character, amorphousness, and semi crystallinity. We found from the DSC profile that the melting point for various polyethylene samples range from approximately 120-130 degrees C.

Differential Scanning Calorimetry (DSC): DSC is a method of analysis that allows the user to measure glass transition, melting temperature, and crystallization temperature while a polymeric material sample is being heated or cooled. Each polymer film tested had a specific melting and recrystallization point that was

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