title: Characterization of the thermal decomposition and polymerization of arprocarb using pyrolysis-GC-MS.
abstract: Arprocarb is a carbamate type insecticide used to control cockroaches, flies, mosquitoes, and is a lawn and turf insect growth regulator. In order to evaluate the effects of the thermal behavior of arprocarb on its bioactivity or the environment, its thermal decomposition and polymerization were characterized using pyrolysis-GC-MS (Py-GC-MS). Arprocarb was pyrolysed at 450 degrees C, 600 degrees C, 750 degrees C, and 900 degrees C, respectively. In all 71 components were determined. It was found that arprocarb was obviously decomposed when the temperature was lower (450 approximately 750 degrees qC), and a large number of mono- and polycyclic aromatic hydrocarbons (PAHs) were produced at higher temperatures (750 approximately 900 degrees C). Furthermore, the variety of the representative compounds versus the temperature was reported. The research results can provide useful information for the understanding of the thermal behavior of arprocarb.
authors.affiliation: Department of Applied Chemistry, Zhengzhou University of Light Industry, Henan, China. gqwang@zzuli.edu.cn
authors.forename: Guoqing
authors.initials: G
authors.lastname: Wang
authors.forename: Yu'an
authors.initials: Y
authors.lastname: Sun
authors.forename: Rongjie
authors.initials: R
authors.lastname: Zhang
authors.forename: Kui
authors.initials: K
authors.lastname: Xie
authors.forename: Hongli
authors.initials: H
authors.lastname: Liu
mesh_terms: D002219:Carbamates / Q000032:analysis / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D017745:Incineration; D007306:Insecticides / Q000032:analysis / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D044366:Transition Temperature
chemical_list: D002219:Carbamates; D007306:Insecticides; D011084:Polycyclic Aromatic Hydrocarbons; D011108:Polymers; C516183:arprocarb