2DIR spectra of polymers based on DIRLD spectra.
Dynamic IR linear dichroic (DIRLD) spectra of isotactic polypropylene (i-PP) and HDPE have been recorded and the origin of all spectral features has been pointed out. Furthermore, DIRLD spectra and the corresponding asynchronous 2DIR plot of a stretching-frequency dependent phenomenon of i-PP has been presented. A model to interpret the spectra has been proposed.
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