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Article
Experimental Determination of the Fiber Orientation Parameters and the Raman Tensor of the 1614 cm-1 Band of Poly(ethylene terephthalate)
Journal of Molecular Sttructure
  • Cherish Christina Lesko, Cedarville University
Document Type
Article
Publication Date
3-1-2000
DOI
https://doi.org/10.1016/S0022-2860(99)00430-5
Abstract

Polarized Raman spectroscopic measurements were performed on uniaxially oriented fibers of poly(ethylene terephthalate). The diagonal Raman tensor for the 1614 cm−1 band along with the second- and fourth-order coefficients of the orientation distribution function are determined from the Raman scattering intensities as a function of spin-speed. The development of an oriented-amorphous material within the fiber is explained. The elements of the Raman tensor appear to vary as a function of spinning speed. This observation calls into question the use of isotropic values for the Raman tensor when determining the orientation.

Keywords
  • Fiber orientation parameters,
  • Raman tensor,
  • Poly(ethylene terephthalate)
Citation Information
Cherish Christina Lesko. "Experimental Determination of the Fiber Orientation Parameters and the Raman Tensor of the 1614 cm-1 Band of Poly(ethylene terephthalate)" Journal of Molecular Sttructure Vol. 521 (2000) p. 127 - 136
Available at: http://works.bepress.com/cherish-lesko/3/