TY - JOUR A1 - Lörchner, Dominique A1 - Dittmann, Daniel A1 - Braun, Ulrike A1 - Kroh, L. W. A1 - Köppen, Robert T1 - Investigation of two triazine-based heterocyclic brominated flame retardants by coupled thermogravimetry-Fourier transform infrared spectroscopy T2 - Journal of Analytical and Applied Pyrolysis N2 - In this study, the thermal decomposition of 1,3,5-tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione (TDBPTAZTO) and 2,4,6-tris-(2,4,6-tribromo-phenoxy)-1,3,5-triazine (TTBP-TAZ) were investigated for the first time by thermogravimetric analysis. Both compounds were thermal degraded between 225 and 350 °C (TDBP-TAZTO) as well as 300 and 400 °C (TTBP-TAZ). As a result, mass loss (%) of 98.5% for TTBP-TAZ and 95.4% for TDBP-TAZTO at 600 °C under N2 were observed. The major pyrolytic degradation products of TTBP-TAZ were formed in a single step and identified by FTIR analysis as 2,4,6-tribromophenol and further bromine-substituted aromatic compounds. In comparison, TDBP-TAZTO was pyrolytic degraded in two steps, whereby on the first step the release of hydrogen Bromide and 1,3,5-triallyl-1,3,5-triazine-2,4,6-trione could be detected. In the second minor step, isocyanic acid could be additionally identified. Subsequently, the obtained products of the TGA-FTIR measurements were used for a targeted search for mass fragments in mass spectrometry measurements. For TTBP-TAZ, only the degradation product 1,3,5-tribromobenzene could be detected by MS/MS analyzes. No comparable thermal degradation products, except hydrogen bromide, were observed in the MS/MS spectra of TDBP-TAZTO. Therefore, the search of further mass fragments was not possible compared to the findings of the TGA-FTIR measurements. PB - Elsevier B.V. KW - Pyrolysis KW - Thermal decomposition KW - TGA-FTIR KW - Mass spectrometry PY - 2019 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/48506 AN - OPUS4-48506 VL - 141 SP - 104635-1 EP - 104635-5 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany