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High‐pressure absorption spectroscopy in polymerizing systems
Author(s) -
Buback Michael,
Vögele HansPeter,
Winkels HermannJosef
Publication year - 1986
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19860050108
Subject(s) - spectroscopy , infrared spectroscopy , infrared , absorption (acoustics) , absorption spectroscopy , polymerization , materials science , wavenumber , kinetic energy , ultraviolet , ethylene , laser , analytical chemistry (journal) , copolymer , photochemistry , chemistry , optics , polymer , optoelectronics , organic chemistry , catalysis , physics , quantum mechanics , composite material
Quantitative high‐pressure absorption spectroscopy in the mid infrared, near infrared, and ultraviolet region enables direct and precise investigation of high‐pressure ethylene polymerizations with thermal, chemical, and laser‐photochemical initiation. The special advantages of kinetic studies via quantitative near infrared spectroscopy in an extended wavenumber range are outlined. Extensions of the method on copolymer systems are indicated. The spectroscopic technique is of general applicability in studies on reactions and equilibria in dense fluid states including liquids and compressed gases.