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Studies of Chemically Modified Poly(ethylene terephthalate) Fibers by FT-IR Photoacoustic Spectroscopy and X-Ray Photoelectron Spectroscopy

Volume 44, Number 6 (July 1990) Page 1035-1039

Yang, Charles Q.; Bresee, Randall R.; Fateley, William G.

Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS) and x-ray photoelectron spectroscopy (XPS) were used to determine the location of a copolymeric finish in poly(ethylene terephthalate) (PET) fibers. The XPS studies showed that the copolymeric finish was deposited on the fiber surfaces. The FT-IR/PAS data demonstrated possible penetration of the finish from the fiber's surface into the near-surface. The combination of FT-IR/PAS and XPS appears to be very useful for the determination of finish location in chemically modified fibers.