Mixed crystal infrared spectroscopy of uniaxially drawn polyethylene films

SPELLS, S. J. and COUTRY, S. (2007). Mixed crystal infrared spectroscopy of uniaxially drawn polyethylene films. Applied spectroscopy, 61 (3), 276-282.

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Link to published version:: https://doi.org/10.1366/000370207780220930
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    Blends of fully deuterated polyethylene with unlabeled polymer have been studied using Fourier transform infrared (FT-IR) spectroscopy. Melt quenched samples were drawn at 1 mm min(-1), clamped, and cooled with liquid nitrogen. The CD2 bending vibration is sensitive to the local molecular arrangement. Changes in band components were related to (1) crystallization of amorphous polymer; (2) the untwisting of spherulite ribbons perpendicular to the draw direction; and (3) coarse slip. Measurement of remaining doublet splittings enabled estimates of surviving crystallite block sizes to be made. In addition, CH2 wagging and rocking bands showed evidence of increasingly defective crystals and of a Martensitic transformation to the monoclinic crystal form.

    Item Type: Article
    Additional Information: Spells, Stephen J. Coutry, Sandry
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Polymers, Composites and Spectroscopy Group
    Identification Number: https://doi.org/10.1366/000370207780220930
    Page Range: 276-282
    Depositing User: Hilary Ridgway
    Date Deposited: 12 May 2010 10:47
    Last Modified: 18 Mar 2021 09:45
    URI: http://shura.shu.ac.uk/id/eprint/1817

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