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Process analysis: properties of poly(ethylene terephthalate) measured by near infrared spectroscopy, 2 . In‐line analysis of poly(ethylene terephthalate) melt
Author(s) -
Lammers Hans,
Van Uum Marinus P. B.,
De Kleijn Jaap P.
Publication year - 1995
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1995.021960622
Subject(s) - poly ethylene , ethylene , infrared spectroscopy , infrared , materials science , spectroscopy , polymer chemistry , viscosity , line (geometry) , analytical chemistry (journal) , chemistry , composite material , organic chemistry , optics , mathematics , physics , quantum mechanics , catalysis , geometry
Near infrared (NIR) transmission spectra recorded from poly(ethylene trerephthalate) (PET) melt contain a sufficient amount of information to estimate the number of carboxylic end groups and the relative viscosity. In‐line monitoring of these quality parameters is feasible.