Size-Dependent Optical Properties of Polyethylene Powders in Far-IR Region: On the Way to Universal Matrix | Sciact - CRIS-system of Boreskov Institute of Catalysis

Size-Dependent Optical Properties of Polyethylene Powders in Far-IR Region: On the Way to Universal Matrix Full article

Journal

Journal of Quantitative Spectroscopy and Radiative Transfer
ISSN: 0022-4073

Output data

Year: 2014, Volume: 147, Pages: 1-7 Pages count : 7 DOI: 10.1016/j.jqsrt.2014.05.011

Tags

FIR, Light scattering, Polyethylene powders, Transparency

Authors

Zhukas Liudmila A. ^1,2 , Veber Sergey L. ^1,2 , Mikenas Tatiana B. ³ , Yurkin Maxim A. ^2,4 , Karpova Elena V. ⁵ , Maltsev Valeri P. ^2,4 , Mamatyuk Viktor I. ⁵ , Echevskaya Ljudmila G. ³ , Bagryanskaya Elena G. ^1,2,5 , Zakharov Vladimir A. ^2,3

Affiliations

1	International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
2	Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia
3	Boreskov Institute of Catalysis, Ac. Lavrentieva ave. 5, 630090 Novosibirsk, Russia
4	Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya str. 3, 630090 Novosibirsk, Russia
5	N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Ac. Lavrentieva ave. 9, 630090 Novosibirsk, Russia

Funding (8)

1	Russian Foundation for Basic Research	12-03-31396
2	Russian Foundation for Basic Research	12-04-00737
3	Russian Foundation for Basic Research	14-03-00224
4	The Ministry of Education and Science of the Russian Federation
5	Council for Grants of the President of the Russian Federation
6	Russian Science Foundation	14-15-00155
7	Council for Grants of the President of the Russian Federation	МД-276.2014.3
8	Council for Grants of the President of the Russian Federation	МК-3241.2014.3

Similar to potassium bromide (KBr), which is used in mid-IR as a matrix for pellet preparation, polyethylene (PE) is widely applied in far-IR because it is an inert material without intensive absorption lines in this range. However, despite the material itself being transparent, the transmission of pellet made of PE powder strongly depends on the wavelength tending to decrease almost to zero in a short-wave part of the far-IR range. Heating of the pellet to PE melting temperature significantly improves its transparency, but this approach can only be applied to thermally stable compounds. In this work 8 types of PE powders of different mean particle size (MPS) ranging from 43 to 3 µm have been synthesized. Far-IR spectra of PE pellets made of these powders at room temperature have been measured and the inverse correlation between overall far-IR pellet transparency and MPS of its PE powder has been found. The imaginary part of the effective refractive index of the studied pellets obeys light-scattering scale invariance rule, indicating that the transmission of PE pellets is limited by light scattering by PE grains. It has been shown that PE powders with MPS of ~4 µm or less are suitable as a matrix for pellet preparation in far-IR spectroscopy without the necessity of pellet melting.

Zhukas L.A. , Veber S.L. , Mikenas T.B. , Yurkin M.A. , Karpova E.V. , Maltsev V.P. , Mamatyuk V.I. , Echevskaya L.G. , Bagryanskaya E.G. , Zakharov V.A.
Size-Dependent Optical Properties of Polyethylene Powders in Far-IR Region: On the Way to Universal Matrix
Journal of Quantitative Spectroscopy and Radiative Transfer. 2014. V.147. P.1-7. DOI: 10.1016/j.jqsrt.2014.05.011 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Feb 27, 2014
Accepted:	May 2, 2014
Published online:	May 17, 2014
Published print:	Nov 1, 2014

Web of science:	WOS:000340694200001
Scopus:	2-s2.0-84901823234
Elibrary:	24051204
Chemical Abstracts:	2014:1210226
Chemical Abstracts (print):	162:226388
OpenAlex:	W2039513745

DB	Citing
Web of science	3
Scopus	2
Elibrary	2
OpenAlex	3