Abstract
The gas permeation properties of two novel polyamides comprising m-carborane groups in the backbone have been first studied. The polymers have been synthesized by the polycondensation of m-carboranedicarboxylic acids and two diamines. It has been found that the synthesized polyamides exhibit unexpectedly low glass transition temperatures (140 and 173°C). For a number of light gases, permeability (P) and diffusion (D) coefficients have been measured and solubility coefficients as the S = P/D ratio have been determined. The parameters found have been compared with the P, D, and S values of other aromatic polyamides. It has been shown that according to these transport parameters, the novel polyamides are similar to many of the previously studied aromatic polyamides.
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Original Russian Text © Yu.P. Yampolskii, S.A. Legkov, B.F. Shklyaruk, A.L. Rusanov, V.I. Bregadze, 2017, published in Membrany i Membrannye Tekhnologii, 2017, Vol. 7, No. 1, pp. 43–49.
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Yampolskii, Y.P., Legkov, S.A., Shklyaruk, B.F. et al. Gas permeability of carborane-containing polyamides. Pet. Chem. 57, 153–158 (2017). https://doi.org/10.1134/S0965544117020074
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DOI: https://doi.org/10.1134/S0965544117020074