1,3,5-TRICYANOBENZENE –A MUTAGENIC BY-PRODUCT OF CARBON FIBER PRODUCTION IN PYROLYSIS OF POLY(ACRYLONITRILE-CO-METHYL METHACRYLATE)

László Kótai, Ágnes Gömöry, Pradeep K Sharma

Abstract


A solid by-product formed as deposit in the pyrolysis process of poly(acrylonitrile-co-methyl methacrylate) was analyzed and two main components, namely ammonium sulphate and 1,3,5-tricyanobenzene were identified by IR, GC-IR, TG-MS and XRD methods. The main organic components, 1,3,5-tricyanobenzene was crystallized out from acetone extract as colourless needles. 1,3,5-Tricyanobenzene proved to be mutagenic by bacterial (Salmonella typhimurium TA98 and TA1537) reverse mutation assay.

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