TY  - JOUR
AU  - Blazsó, Marianne
AU  - Czégény, Zsuzsanna
AU  - Csoma, C
TI  - Pyrolysis and debromination of flame retarded polymers of electronic scrap studied by analytical pyrolysis
JF  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
J2  - J ANAL APPL PYROL
VL  - 64
PY  - 2002
IS  - 2
SP  - 249
EP  - 261
PG  - 13
SN  - 0165-2370
DO  - 10.1016/S0165-2370(02)00035-9
UR  - https://m2.mtmt.hu/api/publication/1197046
ID  - 1197046
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Czégény, Zsuzsanna
AU  - Blazsó, Marianne
TI  - Thermal decomposition of polyamides in the presence of poly(vinyl chloride)
JF  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
J2  - J ANAL APPL PYROL
VL  - 58
PY  - 2001
SP  - 95
EP  - 104
PG  - 10
SN  - 0165-2370
DO  - 10.1016/S0165-2370(00)00152-2
UR  - https://m2.mtmt.hu/api/publication/1197045
ID  - 1197045
AB  - Thermal decomposition of aliphatic and aromatic polyamides (polyamide-12, polyamide-6,6 and poly(1,4-phenylene terephthalamide) (Kevlar)) with poly(vinyl chloride) (PVC) was examined by pyrolysis-gas chromatography/mass spectrometry. Polyamide-PVC mixtures (typical mass ratio 1:1) were pyrolysed at 700 and 900 degreesC. It was found that the presence of PVC promoted the hydrolytic decomposition routes of amide groups and volatile nitrile formation from all examined polyamides due to the hydrogen chloride eliminated from PVC under pyrolysis. In the presence of PVC an elevated yield of alkenenitriles was observed from polyamide-12. Benzeneamine is produced from Kevlar instead of benzenediamine in the presence of PVC, and the evolution of benzoic acid, benzenenitrile and benzeneisocyanate is promoted. At 900 degreesC pyrolysis temperature enhanced hydrogen cyanide evolution was observed from polyamide-12 and polyamide-6,6 in the presence of PVC. Mechanisms are proposed for the hydrogen chloride assisted formation of nitriles. (C) 2001 Elsevier Science B.V. All rights reserved.
LA  - English
DB  - MTMT
ER  -