Nuclear magnetic resonance morphology

The dispersion morphology of prepared materials was studied with a multitechnique approach, by means of rheology, scanning electron microscopy (SEM), x-ray diffraction (XRD), and nuclear magnetic resonance (NMR). The results of these tests showed that the so formulated PA6 nanocomposites used in the present study are fully exfoliated [1,2],... 

Samyn, F., Bourbigot, S., Jama, C., Bellayer, S., Nazare, S., Hull, R., Castrovinci, A., and Camino, G. (2008) Crossed characterisation of polymer-layered silicate (PLS) nanocomposite morphology TEM, x-ray diffraction, rheology and solid-state nuclear magnetic resonance measurements, European Polymer Journal 44(6) 1642-1653. 

In the author s opinion, the better approach to experimentally study the morphology of the silica surface is with the help of physical adsorption (see Chapter 6). Then, with the obtained, adsorption data, some well-defined parameters can be calculated, such as surface area, pore volume, and pore size distribution. This line of attack (see Chapter 4) should be complemented with a study of the morphology of these materials by scanning electron microscopy (SEM), transmission electron microscopy (TEM), scanning probe microscopy (SPM), or atomic force microscopy (AFM), and the characterization of their molecular and supramolecular structure by Fourier transform infrared (FTIR) spectrometry, nuclear magnetic resonance (NMR) spectrometry, thermal methods, and possibly with other methodologies. 

Callaghan, P. T., Coy, A., Halpin, T. P. J., MacGowan, D., Packer, K. J., and Zelaya, F. O. (1992). Diffusion in porous systems and the influence of pore morphology in pulsed gradient spin-echo nuclear magnetic resonance studies. J. Chem. Phys. 97, 651-662. 

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