Abstract
A way of preparing separation layers by the pyrolysis of fluorinated polyimide obtained from 2,4,6-trimethyl-m-phenylenediamine (2,4,6-TMmPDA) and 2,2-bis(3′,4′-dicarboxyphenyl)hexafluoropropane (6FDA) applied onto a diatomite carrier is described. Thermogravimetry, elemental analysis, low-temperature nitrogen adsorption, high-resolution electron microscopy, and gas chromatography are used to study changes in the texture and chromatographic characteristics of these layers. It is found that changes in the structure and the effectivity of separation characteristic of the layers depend on the temperature of pyrolysis, which ranges from 250 to 1100°C. It is established that a layer of separation is formed at 250–350°C, and the order of elution of hydrocarbons is similar to their chromatographic behavior on such stationary phases as OV-101. Layers of amorphous carbon formed on the surfaces of individual particles on a diatomite surface at 500–700°C. These layers ensure highly stable and selective separation of permanent gases and hydrocarbons when they are present together.
Similar content being viewed by others
References
M. G. Sedigh, L. Xu, T. T. Tsotsis, and M. Sahimi, Ind. Eng. Chem. Res. 38, 3367 (1999).
A. F. Ismail and L. I. B. David, J. Membr. Sci. 193, 1 (2001).
T. A. Centeno and A. B. Fuertes, J. Membr. Sci. 160, 201 (1999).
Q. De, W. J. Koros, and S. J. Miller, Ind. Eng. Chem. Res. 41, 367 (2002).
J. E. Koresh and A. Soffer, Sep. Sci. Technol. 22, 973 (1987).
C. H. Liang, G. Y. Sha, and S. C. Guo, Carbon 37, 1391 (1999).
M. Heuchel and D. Hofmann, Desalination 144, 67 (2002).
T. Takeichi, Y. Eguchi, Y. Kaburagi, et al., Carbon 37, 569 (1999).
E. Barbosa-Coutinho, V. M. M. Salim, and S. P. Borges, Carbon 41, 1707 (2003).
M. Pixton and D. Paul, Polymer 36, 2745 (1995).
A. Singh, K. Ghosal, B. Freeman, et al., Polymer 40, 5715 (1999).
C. Nagel, K. Günther-Schade, D. Fritsch, et al., Macromolecules 35, 2071 (2002).
M. Al-Masri, H. Kricheldorf, and D. Fritsch, Macromolecules 32, 7853 (1999).
S. B. Claudia and J. K. William, J. Membr. Sci. 170, 205 (2000).
M. Niwa, H. Kawakami, T. Kanamori, et al., Macromolecules 34, 9039 (2001).
H. Shu-Hsien, H. Chien-Chieh, L. Kueir-Rarn, et al., Eur. Polym. J. 42, 140 (2006).
P. Budd and N. McKeown, Polym. Chem. 1, 63 (2001).
Ohtaa Naoto, Nishi Yoko, Morishita Takahiro, et al., Carbon 46, 1350 (2008).
P. S. Tin, Y. X. Xiao, and T.-Sh. Chung, Separ. Purif. Rev., 285 (2006).
T. A. Vaganova, S. Z. Kusov, V. I. Rodionov, et al., J. Fluorine Chem. 129, 253 (2008).
E. Yu. Yakovleva, I. K. Shundrina, and T. A. Vaganova, J. Anal. Chem. 64, 1044 (2009).
E. Yu. Yakovleva, I. K. Shundrina, E. Yu. Gerasimov, and T. A. Vaganova, Russ. J. Phys. Chem. A 88, 521 (2014).
G. Lazar, K. Zellama, et al., J. Optoelectron. Adv. Mater. 7, 647 (2005).
E. P. Barrett et al., J. Am. Chem. Soc. 73, 373 (1951).
K. I. Sakodynskii and L. I. Panina, Polymeric Sorbents for Molecular Chromatography (Nauka, Moscow, 1977) [in Russian].
Catalog, Sigma-Aldrich, Carboxen1000 in Analytical Application.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.Yu. Yakovleva, I.K. Shundrina, E.Yu. Gerasimov, 2017, published in Zhurnal Fizicheskoi Khimii, 2017, Vol. 91, No. 9, pp. 1579–1587.
Rights and permissions
About this article
Cite this article
Yakovleva, E.Y., Shundrina, I.K. & Gerasimov, E.Y. High-temperature adsorption layers based on fluoridated polyimide and diatomite carrier. Russ. J. Phys. Chem. 91, 1797–1804 (2017). https://doi.org/10.1134/S0036024417090321
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036024417090321