POLARIZED VUV ABSORPTION AND REFLECTION SPECTRA OF ORIENTED FILMS OF POLY(TETRAFLUOROETHYLENE) (CF2)(N) AND ITS MODEL-COMPOUND

Authors
NAGAYAMA K MIYAMAE T MITSUMOTO R ISHII H OUCHI Y SEKI K
Citation
K. Nagayama et al., POLARIZED VUV ABSORPTION AND REFLECTION SPECTRA OF ORIENTED FILMS OF POLY(TETRAFLUOROETHYLENE) (CF2)(N) AND ITS MODEL-COMPOUND, Journal of electron spectroscopy and related phenomena, 78, 1996, pp. 407-410
Citations number
28
Categorie Soggetti
Spectroscopy
Journal title
Journal of electron spectroscopy and related phenomena → ACNP
ISSN journal
03682048
Volume
78
Year of publication
1996
Pages
407 - 410
Database
ISI
SICI code
0368-2048(1996)78:<407:PVAARS>2.0.ZU;2-K
Abstract
Polarized vacuum-UV absorption and reflection spectra were measured fo r oriented films of polytetrafluoroethylene (PTFE) (CF2)(n) and its mo del compound perfluorotetracosane (PFT) n-C24F50. The lowest energy ex citation leading to an intense peak was found to be polarized along th e molecular chain, and its energy decreases with the chain length (8.0 5 eV for PFT and 7.66 eV for PTFE). The polarization and chain-length dependence are discussed with the aid of information by theoretical ca lculation, NEXAFS, and electron transmission spectroscopy.