Polymer Labelling with a Conjugated Polymer-Based Luminescence Probe for Recycling in the Circular Economy.

ABSTRACT: In this paper, we present the use of a disubstituted polyacetylene with high thermal stability and quantum yield as a fluorescence label for the identification, tracing, recycling, and eventually anti-counterfeiting applications of thermoplastics. A new method was developed for the dispersion of poly[1-phenyl-2-[p-(trimethylsilyl)phenyl]acetylene] (PTMSDPA) into polymer blends. For such purposes, four representative commodity plastics were selected, i.e., polypropylene, low-density polyethylene, poly(methyl methacrylate), and polylactide. Polymer recycling was mimicked by two reprocessing cycles of the material, which imparted intensive luminescence to the labelled polymer blends when excited by proper illumination. The concentration of the labelling polymer in the matrices was approximate

SUBMITTER: Kuritka I 

PROVIDER: S-EPMC7362226 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature