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Published August 22, 2006 | public
Journal Article

Insights into Oxidation Pathways, from Gaseous Products of Polypropylene with Selective Isotopic Labeling

Abstract

Polymer degradation mechanisms are exceedingly complex, but their understanding is fundamental to improving material durability. We have initiated selective isotopic labeling as a means of tracking oxidation chemistry, and chose polypropylene (PP) to test this approach, since it has a simple structure (three unique carbon sites along the chain), and is of commercial importance. There has in fact been much interest in the stability of PP, and many prior studies have contributed to the ongoing development of understanding its degradation processes. In recent work, we applied ^(13)C NMR to examine the solid-phase oxidation products of isotopically labeled PP; in this Communication, we begin identifying the volatile products.

Additional Information

© 2006 American Chemical Society. Received April 28, 2006; Revised Manuscript Received June 29, 2006. Publication Date (Web): July 20, 2006. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the U.S. D.O.E. National Nuclear Security Administration under Contract DE-AC04-94AL8500. The authors thank Judith F. Banet, Rachael D. Boyd, Jessica D. Leong, and MacKenzie Naething for assistance in analyzing the GC/MS data.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023