OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy

| PUBLISHED BY SAS — AVAILABLE FROM SAS AND OSA

  • Vol. 40, Iss. 8 — Nov. 1, 1986
  • pp: 1103–1107

Phase Transitions and Surface Characterization of Poly (Butylene Terephthalate) Fibers by Photoacoustic and Diffuse Reflectance Fourier Transform Infrared Spectroscopy

M. W. Urban, E. G. Chatzi, B. C. Perry, and J. L. Koenig

Applied Spectroscopy, Vol. 40, Issue 8, pp. 1103-1107 (1986)


View Full Text Article

Acrobat PDF (517 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

Diffuse reflectance and photoacoustic (PAS) IR techniques are used for spectral measurements of poly(butylene terephthalate) (PBT) fibers. The spectral observations on the fibers are similar to those observed in films. The stress-induced phase transformation is reversible with annealing of the drawn fibers. The annealing process also increases the amount of crystallinity in the fiber. With the use of recently developed PAS methodology to study orientation of the surface species, the orientation of surface aromatic and carbonyl groups is analyzed. In the alpha phase, the surface aromatic rings are preferentially perpendicular on the surface whereas carbonyl groups are preferentially parallel. A similar orientation is observed in the drawn fibers. Annealing of the drawn fibers changes the orientation of the aromatic rings. Upon annealing, the phenyl rings are preferentially parallel to the surface. The depth of penetration at 3000 cm−1 in PBT fibers is found to be approximately 4 μ.

Citation
M. W. Urban, E. G. Chatzi, B. C. Perry, and J. L. Koenig, "Phase Transitions and Surface Characterization of Poly (Butylene Terephthalate) Fibers by Photoacoustic and Diffuse Reflectance Fourier Transform Infrared Spectroscopy," Appl. Spectrosc. 40, 1103-1107 (1986)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-40-8-1103


Sort:  Journal  |  Reset

References

References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited