Variation with temperature (50-250*C) of the absorption spectrum in the CH2 rocking region of polyethylene

P. Bernazzani; Camille Chapados; G. Delmas

doi:10.1117/12.166763

31 January 1994 Variation with temperature (50-250°C) of the absorption spectrum in the CH₂ rocking region of polyethylene

P. Bernazzani, Camille Chapados, G. Delmas

Author Affiliations +

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166763
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

Recent studies, mainly by DSC and NMR spectroscopy, have suggested the existence of a third phase in polymeric materials which is believed to be semi-ordered. The melting trace of polyethylene using a very slow temperature ramp (3K/h) reveals an order-disorder phase change in the melt. We want to confirm this important find by other techniques. This paper presents the use of FTIR to follow the melting process by analyzing the variation with temperature of the absorbance.

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P. Bernazzani, Camille Chapados, and G. Delmas "Variation with temperature (50-250°C) of the absorption spectrum in the CH₂ rocking region of polyethylene", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166763

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