OPTICAL PROPERTIES OF АMORPHOUS PERFLUORINATED POLYMERS AT THE TERAHERTZ RANGE
Abstract
Novel amorphous perfluorinated polymers are synthesized and their features are investigated in terahertz and X-ray spectral ranges. We consider the features of the polymerization process for such monomers in which all hydrogen H atoms are replaced by fluorine F atoms. The measurements of their optical features in the THz range show a record low value of the refraction index in comparison with any solid. The possible minimum of the refraction indices for such polymers is estimated. Also the high transparency of these polymers is shown. The X-ray spectra for some of such polymers are measured. The data obtained by X-ray diffraction analysis are compared with the peaks of the terahertz absorption spectrum.
About the Authors
M. S. Kitai
Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences
Russian Federation
Russian Federation
W. W. Volkov
Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences
Russian Federation
Russian Federation
A. A. Zharov
Institute of Organic Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Ya. V. Zubavichus
Research Center “Kurchatov’s Institute”
Russian Federation
Russian Federation
P. V. Konarev
Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences; Research Center “Kurchatov’s Institute”
Russian Federation
Russian Federation
M. M. Nazarov
Research Center “Kurchatov’s Institute”
Russian Federation
Russian Federation
E. W. Polunin
Institute of Organic Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Yu. E. Pogodina
Institute of Organic Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
V. I. Sokolov
Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences
Russian Federation
Russian Federation
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Review
For citations:
Kitai M.S., Volkov W.W., Zharov A.A., Zubavichus Ya.V., Konarev P.V., Nazarov M.M., Polunin E.W., Pogodina Yu.E., Sokolov V.I. OPTICAL PROPERTIES OF АMORPHOUS PERFLUORINATED POLYMERS AT THE TERAHERTZ RANGE. Zhurnal Prikladnoii Spektroskopii. 2018;85(3):364-371. (In Russ.)
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