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Chemiluminescence Techniques for the Characterization of Materials [New Analytical Methods (41)]
Author(s) -
Mendenhall G. David
Publication year - 1990
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199003621
Subject(s) - chemiluminescence , autoxidation , infrared , photochemistry , materials science , polymer , wavelength , photon , optoelectronics , radiation , visible spectrum , absorption (acoustics) , analytical chemistry (journal) , chemistry , optics , organic chemistry , physics , composite material
Photons are emitted at low levels from a wide variety of organic materials at wavelengths ranging from the visible to infrared. This light emission accompanies free‐radical autoxidation and charge‐recombination processes and is particulary useful in assessing thermal oxidation and radiation damage as well as polymer curing reactions. IR chemiluminescence, which offers advantages because of reduced self‐absorption, has been shown to mark the end of induction periods in inhibited systems. With the introduction of sensitive solid‐state devices, the chemiluminescence technique has been extended to two‐dimensional imaging and presentation.