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Polypropylene–clay nanocomposite structure probed by H NMR relaxometry |
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| Authors: | Maria Inê s Bruno Tavares, Regina Freitas Nogueira, Rosane Aguiar da Silva San Gil, Monica Preto, Emerson Oliveira da Silva, Mariana Bruno Rocha e Silva,Eduardo Miguez |
| Affiliation: | aInstituto de Macromoléculas Profa. Eloísa Mano, Universidade Federal do Rio de Janeiro, CT, Bloco J, Ilha do Fundão, CP 68525, CEP 21 945-970 Rio de Janeiro, RJ, Brazil bCOPPE/UFRJ, Cidade Universitária, Centro de Tecnologia, Bloco G, Ilha do Fundão, Rio de Janeiro, RJ, Brazil cInstituto de Química, Universidade Federal do Rio de Janeiro, 21941-972 Rio de Janeiro, RJ, Brazil |
| Abstract: | In this paper, we used low-field nuclear magnetic resonance (NMR) relaxometry and X-ray diffraction techniques to characterize polypropylene and to probe the polypropylene/clay interactions in non-exfoliated and exfoliated polypropylene–clay nanocomposites. Differences in T1H longitudinal relaxation time data and X-ray diffraction spectra were correlated with the presence of different domains in the samples studied. The results demonstrated the potential of H NMR relaxometry as a tool in the characterization of polymer–clay nanocomposites. |
| Keywords: | Nanocomposites Low-field NMR Polypropylene Clay Relaxometry |
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