High-Pressure Raman Spectroscopy and X-ray Diffraction Studies of a Terpolymer of Tetrafluoroethylene-Hexafluoropropylene-Vinylidene Fluoride: THV 500
Authors: Emmons, E.D.1; Velisavljevic, N.2; Schoonover, J.R.3; Dattelbaum, D.M.2
Source: Applied Spectroscopy, Volume 62, Issue 2, Pages 32A-72A and 133-257 (February 2008) , pp. 142-148(7)
Publisher: Society for Applied Spectroscopy
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Abstract:
High-pressure Raman spectroscopy and X-ray diffraction of THV 500, a terpolymer of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride, were performed using diamond anvil cells (DAC). Changes in the interatomic spacing as well as shifts of several of the vibrational bands as a function of pressure were measured up to ∼10 GPa. The changes in interatomic spacing and shifts of the vibrational bands are compared to those of polytetrafluoroethylene, showing the effects of copolymerization and reduced crystallinity. The high-pressure behavior of polymers is a relatively unexplored field but is becoming increasingly important due to applications where polymers experience extreme conditions.Keywords: HIGH PRESSURE; X-RAY DIFFRACTION; RAMAN SPECTROSCOPY; FLUOROPOLYMERS
Document Type: Research article
DOI: 10.1366/000370208783575573
Affiliations: 1: Materials Science and Technology Division, MS E549, Los Alamos National Laboratory, Los Alamos, New Mexico 87545; Department of Physics and Nevada Terawatt Facility, MS 220, University of Nevada, Reno, Reno, Nevada 89557 2: Dynamic and Energetic Materials Division, MS P952, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 3: Materials Science and Technology Division, MS E549, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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