High Performance Recycling of Polymers by Means of Their Fluorescence Lifetimes* - Green and Sustainable Chemistry

GSC > Vol.4 No.3, August 2014

High Performance Recycling of Polymers by Means of Their Fluorescence Lifetimes* ()

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DOI: 10.4236/gsc.2014.43019 7,040 Downloads 12,708 Views Citations

Author(s)

Heinz Langhals, Dominik Zgela, Thorben Schlücker

Affiliation(s)

Department of Chemistry, LMU University of Munich, Munich, Germany.

ABSTRACT

Technical polymers could be identified by means of their remarkably strong auto fluorescence. The time constants of this fluorescence proved to be characteristic for the individual polymers and can be economically determined by integrating procedures. The thus obtained unequivocal identification is presented for their sorting for recycling. Furthermore, polymeric materials were doped with fluorescent dyes allowing a fine-classification of special batches.

KEYWORDS

Recycling, Polymers, Fluorescence Lifetime, Labelling, Fluorescence Spectroscopy

Share and Cite:

Langhals, H. , Zgela, D. and Schlücker, T. (2014) High Performance Recycling of Polymers by Means of Their Fluorescence Lifetimes*. Green and Sustainable Chemistry, 4, 144-150. doi: 10.4236/gsc.2014.43019.

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