Abstract

Dynamic rheo-optical spectra of two isotactic polypropylene samples of different states of order were measured by step-scan FT-IR spectrometry. Experimental details and data collection considerations are discussed. The features in the dynamic spectra are found to be due to small wave-number shifts and absorption changes. The dynamic rheo-optical spectra depend strongly on the pretreatment of the samples, as well as on the polarization state of the infrared radiation used for analysis.

High-resolution multi-scan compact Fourier transform-infrared spectrometer

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Opt. Lett. 44(12) 3126-3129 (2019)

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Opt. Lett. 42(7) 1424-1427 (2017)

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