作者: E Jakab , Md.A Uddin , T Bhaskar , Y Sakata
DOI: 10.1016/S0165-2370(03)00075-5
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摘要: The thermal decomposition of four high-impact polystyrene (HIPS) samples containing brominated flame retardants has been studied. Decabromodiphenyl ether (Br10-DPE) and decabromodibenzyl (Br10-DB) were used as two contained antimony trioxide (Sb2O3) synergist besides the additives. HIPS was studied by thermogravimetry/mass spectrometry (TG/MS), pyrolysis-gas chromatography/mass (Py-GC/MS) pyrolysis-mass (Py-MS). It established that additives themselves do not change temperature (PS). However, Sb2O3 reduces stability indicating initiates PS. Water styrene products detected during first stage from Sb2O3. Nevertheless, majority PS decomposes at a higher temperature. decompose different pathways. scission CC bonds, resulting in formation bromotoluenes, is most important reaction Br10-DB In contrast, Br10-DPE an intermolecular ring closure pathway producing dibenzofurans (DBF).