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Isotacticity determination of polypropylene using FT-Raman spectroscopy

✍ Scribed by Tom Sundell; Heidi Fagerholm; Hervé Crozier

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 519 KB
Volume: 37
Category: Article
ISSN: 0032-3861
DOI: 10.1016/0032-3861(96)88466-7

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An infrared method has been developed for the determination of the isotacticity of polypropylene in the 90-100~o range. The method requires the annealing of thin films a t 165-167°C. for 3 hr. in an inert at>mosphere, followed by slow cooling to room temperature. For approximate answers the ratio of