Problems of Forensic Sciences 2001 Vol. 47 (XLVII) 93-109
LOW TEMPERATURE PYROLYSIS OF POLYMERS
Joachim GEYER-LIPPMANN
Landeskriminalamt, Berlin, Germany
Streszczenie
When you take a pyrolysis temperature of about 450°C you get as main products the additives, monomers and oligomers of the polymer which you had pyrolised. In a second step you pyrolisis the same sample at 800°C, were you get nearly the same pyrogram as if you had pyrolised it only at 800°C. For the identification of the gotten products in the pyrogram by low temperature pyrolysis we pyrolised additives for polyolefines from Ciba Geigy and additives for all kind of coatings and polymers from Byk. In the common MS-libraries the spectra of the additives are not included. So we build up our own library with about 100 entries. With this method you get an excellent discrimination power by the analysis of polymers and coatings.
Słowa kluczowe
Pyrolysis; Additives; Coatings; Polymers.