Abstract
A novel approach to determine the molecular orientation of dimethyl terephthalate molecules with respect to the direction of the crystal axis is reported. This determination was achieved by changing the crystal orientation with respect to the incident laser light of a micro-Raman spectrometer. Raman spectra were obtained at different incidence angles of the laser beam with respect to the crystal symmetry axis. The intensities of some specific bands were analyzed as a function of the tilting angle. With this information the molecular orientation with respect to the crystal axis was determined making use of a simple mechanical model.
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References
H.F. Mark, J. Mcketta, and D.F. Othmer, Encyclopedia of Chemical Technology, 2nd ed. (Interscience Publishers, John Wiley and Sons, New York, 1978), Vol. 10.
H.F. Mark, J. Mcketta, and D.F. Othmer, Encyclopedia of Chemical Technology, 2nd ed. (Interscience Publishers, John Wiley and Sons, New York, 1989), Vol. 15.
R. Loudon, Adv. Phys. 13, 423 (1964).
Analytical Raman Spectroscopy, edited by J.G. Grasselli and B.J. Bulkin (Wiley-Interscience, John Wiley and Sons, New York, 1991).
G. Socrates, Infrared Characteristics Groups of Frequencies, 2nd ed. (John Wiley and Sons, West Sussex, United Kingdom, 1994).
A. Alvarez-Castillo and V.M. Castaño, J. Mater. Sci. Lett. 14, 139 (1997).
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Rodrĺguez, R., Pacheco, S., Vargas, S. et al. Crystalline Structure Determination of Anisotropic Dimethyl Terephthalate Crystallites by Micro-Raman Spectroscopy. Journal of Materials Research 15, 1397–1403 (2000). https://doi.org/10.1557/JMR.2000.0202
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DOI: https://doi.org/10.1557/JMR.2000.0202