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Kinetic studies of polyurethane polymerization with Raman spectroscopy

✍ Scribed by Shane Parnell; K. Min; M. Cakmak

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
226 KB
Volume
44
Category
Article
ISSN
0032-3861

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✦ Synopsis

In this study, the polymerization kinetics of an uncatalyzed polyester based thermoplastic polyurethane formulation was characterized with Raman spectroscopy. Measuring the normalized scattering intensity of a band originating from the TPU diisocyanate, conversion was calculated as a function of time. Kinetic parameters obtained from these experiments correlated well with those obtained from analogous calorimetric experiments and with literature values. It was concluded that Raman spectroscopy is a powerful tool for characterizing the polymerization kinetics of polyurethanes in situ.

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