Publication Details (including relevant citation information):
Blakey, I.; George, G. A., Macromolecules 2001, 34 (6), 1873-1880.
The thermal oxidn. of polypropylene was probed, in situ, by a novel technique that simultaneously monitors chem. induced light emission (chemiluminescence) and changes in FTIR emission spectra of an oxidizing sample. The results obtained from this technique demonstrated that the chemiluminescence intensity (ICL) was proportional to the accumulation of carbonyl species formed during oxidn., rather than the rate of oxidn., which is predicted from application of the steady-state approxn. to classical chemiluminescence mechanisms assocd. with auto-oxidn. Two possible mechanisms were proposed to account for the results obtained. The first mechanism involved energy transfer from a triplet carbonyl, formed via a classical mechanism, to a more efficient emitter formed during oxidn. The second possible mechanism involved reaction of a peroxidic compd. with an oxidn. product.
Address (URL): http://pubs.acs.org/doi/abs/10.1021/ma001206n