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http://repositorio.ufla.br/jspui/handle/1/41176| Título: | Ionic desorption in PMMA-Fe3O4 hybrid materials induced by fast electrons: an experimental and theoretical investigation |
| Palavras-chave: | PMMA-gamma-Fe2O3 ESID Theoretical study Poly(methyl methacrylate) Electron stimulated ion desorption (ESID) |
| Data do documento: | Jan-2014 |
| Editor: | Elsevier |
| Citação: | ROCHA, M. V. J. et al. Ionic desorption in PMMA-Fe3O4 hybrid materials induced by fast electrons: an experimental and theoretical investigation. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, [S.l.], v. 117, p. 276-283, Jan. 2014. DOI: 10.1016/j.saa.2013.08.029. |
| Resumo: | Poly(methylmetacrilate)-maghemite (PMMA-gamma-Fe2O3) hybrid material was studied by the electron stimulated ion desorption (ESID) techniques coupled with time-of-flight mass spectrometry (TOF-MS) and theoretical investigation about its fragmentation. Moreover, atomic force microscopy was utilized to characterize the morphology before and after ionic desorption. ESID results indicated differences of pattern fragmentation for different compositions of hybrid material in comparison with neat PMMA. Theoretical studies suggest that kinetics effects can take place in the fragmentation process and electrostatic contributions were important in the stabilization of PMMA on maghemite after the grafting process. |
| URI: | https://www.sciencedirect.com/science/article/abs/pii/S1386142513008925 http://repositorio.ufla.br/jspui/handle/1/41176 |
| Aparece nas coleções: | DQI - Artigos publicados em periódicos |
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