Chromatographic analysis of antioxidants in polymeric materials and their migration from plastics into solution
2008 (English)In: Chromatography for Sustainable Polymeric Materials: Renewable, Degradable And Recyclable / [ed] Albertsson, AC; Hakkarainen, M, Springer Berlin/Heidelberg, 2008, Vol. 211, 117-157 p.Chapter in book (Refereed)
The accurate and reliable measurement of antioxidant content in polymers by chromatographic techniques, e.g., liquid chromatography (LC) is an important tool in quality and manufacturing control, troubleshooting, and material or vendor identification. This chapter describes characterization by chromatographic techniques and sample preparation methods to identify and quantify antioxidants and their degradation products in polymeric materials. The major difficulty in the characterization is usually not the analytical method but rather the separation of the antioxidants from the polymer matrix. The separation can be performed by various extraction methods. Traditionally, Soxhlet or polymer dissolution methods are used. These methods have several disadvantages. Therefore, more complex and efficient methods with the possibility of working at elevated temperatures and pressures have been developed, i.e., microwave-assisted extraction (MAE), supercritical fluid extraction (SFE) and accelerated solvent extraction (ASE), which are discussed here. These methods make it possible to study the relation between antioxidant efficiency and the release of degradation products from polymers. Another interesting aspect is the study of migration of antioxidants from plastic packaging into the surrounding media.
Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2008. Vol. 211, 117-157 p.
, Advances in Polymer Science, ISSN 0065-3195 ; 211
antioxidants, gas chromatography (GC), liquid chromatography (LC), microwave assisted extraction (MAE), polymers
IdentifiersURN: urn:nbn:se:kth:diva-17697DOI: 10.1007/12_2007_127ISI: 000257692200005ScopusID: 2-s2.0-54249142794ISBN: 978-3-540-78762-4OAI: oai:DiVA.org:kth-17697DiVA: diva2:335742
QC 201209062010-08-052010-08-052012-09-06Bibliographically approved