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Proceedings Paper

Use of band-fitted Raman spectra for the physical characterization of polymers and measurement of the oriented amorphous phase
Author(s): Fran Adar; Herman D. Noether
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Paper Abstract

Polarized Raman spectra of spin-oriented and drawn fibers of high-tenacity polyethylene and polyethylene terephthalate have been measured in order to correlate bulk properties with microscopic structural order. Band-fitting is pivotal to separating components of closely spaced lines. In the case of polyethylene terephthalate, glycol bands just below ~1100 cm-i correlate in intensity with orientation as derived front optical birefringence. Separate bands can be correlated with the trans crystalline and trans amorphous phases. Polarized spectra of a fiber of polyethylene with high orientation and crystallinity can be used as a basis with which to compare partially crystalline materials. Since the amorphous phase of oriented partially crystalline polymers determines the practical strength of these fibers, the Raman data that provides information otherwise unobtainable can be useful in their characterization.

Paper Details

Date Published: 14 May 1992
PDF: 11 pages
Proc. SPIE 1636, Applied Spectroscopy in Materials Science II, (14 May 1992); doi: 10.1117/12.59295
Show Author Affiliations
Fran Adar, Instruments SA, Inc. (United States)
Herman D. Noether, Textile Research Institute/Princeton (United States)


Published in SPIE Proceedings Vol. 1636:
Applied Spectroscopy in Materials Science II
William G. Golden, Editor(s)

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