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Aromatic Copolyamides with Anthrazoline Units in the Backbone: Synthesis, Characterization, Pervaporation Application

1
Department of Chemical Thermodynamics and Kinetics, Saint Petersburg State University, Saint Petersburg 198504, Russia
2
Institute of Macromolecular Compounds, Russian Academy of Sciences, Saint Petersburg 199004, Russia
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Author to whom correspondence should be addressed.
Academic Editor: Lloyd M. Robeson
Polymers 2016, 8(10), 362; https://doi.org/10.3390/polym8100362
Received: 19 August 2016 / Revised: 27 September 2016 / Accepted: 10 October 2016 / Published: 17 October 2016
Copolyamides with anthrazoline units in the backbone (coPA) were synthesized and dense nonporous films were prepared by solvent evaporation. Glass transition temperature, density, and fractional free volume were determined for the dense nonporous films composed of polyamide and two of its copolymers containing 20 and 30 mol % anthrazoline units in the backbone. Transport properties of the polymer films were estimated by sorption and pervaporation tests toward methanol, toluene, and their mixtures. An increase in anthrazoline fragments content leads to an increasing degree of methanol sorption but to a decreasing degree of toluene sorption. Pervaporation of a methanol–toluene mixture was studied over a wide range of feed concentration (10–90 wt % methanol). Maximal separation factor was observed for coPA-20 containing 20 mol % fragments with anthrazoline units; maximal total flux was observed for coPA-30 with the highest fractional free volume. View Full-Text
Keywords: copolyamides with anthrazoline units; membranes; sorption; pervaporation; methanol–toluene mixture copolyamides with anthrazoline units; membranes; sorption; pervaporation; methanol–toluene mixture
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MDPI and ACS Style

Polotskaya, G.A.; Pulyalinа, A.Y.; Goikhman, M.Y.; Podeshvo, I.V.; Valieva, I.A.; Toikka, A.M. Aromatic Copolyamides with Anthrazoline Units in the Backbone: Synthesis, Characterization, Pervaporation Application. Polymers 2016, 8, 362.

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