Correlation between native bonds in a polymeric material and molecular emissions from the laser-induced plasma observed with space and time resolved imaging
| Autor: | Qianli Ma, Jin Yu, Frédéric Pelascini, Vincent Detalle, F. Surma, S. Grégoire, Wenqi Lei, Vincent Motto-Ros, X.C. Wang |
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| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Polyoxymethylene Radical Analytical chemistry Polymer Atomic and Molecular Physics and Optics Analytical Chemistry chemistry.chemical_compound Delocalized electron chemistry Polyamide Molecule Physical chemistry Polystyrene Emission spectrum Instrumentation Spectroscopy |
| Zdroj: | Spectrochimica Acta Part B: Atomic Spectroscopy. :31-37 |
| ISSN: | 0584-8547 |
| DOI: | 10.1016/j.sab.2012.07.020 |
| Popis: | Emissions from C 2 molecules and CN radicals in laser-induced plasmas on polymeric materials were observed with time-resolved spectroscopic imaging. More precisely, differential imaging with a pair of narrowband filters (one centered on the emission line and another out of the line) was used to extract emission images of interested molecules or radicals. The correlation between the molecular emission image of the plasma and the molecular structure of the polymer to be analyzed was studied for four different types of materials: polyamide (PA) with native CN bonds, polyethylene (PE) with simple CC bonds, polystyrene (PS) with delocalized double CC bonds, and polyoxymethylene (POM) which neither contains CC nor CN bonds. A clear correlation is demonstrated between emission and molecular structure of the material, allowing the identification of several organic compounds by differential spectroscopic imaging. |
| Databáze: | OpenAIRE |
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