2024
DOI: 10.1021/acs.macromol.3c02290
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Correlating Near-Infrared Spectra to Bulk Properties in Polyolefins

Bradley P. Sutliff,
Shailja Goyal,
Tyler B. Martin
et al.

Abstract: The industry standard for sorting plastic wastes is near-infrared (NIR) spectroscopy, which offers rapid and nondestructive identification of various plastics. However, NIR does not provide insights into the chain composition, conformation, and topology of polyolefins. Molar mass, branching distribution, thermal properties, and comonomer content are important variables that affect final recyclate properties and compatibility with virgin resins. Heterogeneous mixtures arise through sorting errors, multicomponen… Show more

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