The physicochemical properties of polyurethane membranes determined by swelling measurements

Gabriela Ciobanu; Gabriela Carja; Gabriela Apostolescu; Nicolae Apostolescu

doi:10.1117/12.823628

6 January 2009 The physicochemical properties of polyurethane membranes determined by swelling measurements

Gabriela Ciobanu, Gabriela Carja, Gabriela Apostolescu, Nicolae Apostolescu

Proceedings Volume 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV; 72970I (2009) https://doi.org/10.1117/12.823628
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 2008, Constanta, Romania

Abstract

In this work, we have dispersed SAPO-5 zeolite particles in polyurethane matrix for preparation of porous mixed matrix membranes. The goal of work is the determination of the cohesive energy density for unfilled- and zeolite - filled polyurethane membranes. Experimental determination of cohesive energy density values for the prepared membranes is obtained by measuring the swelling coefficients in water and several alcohols (methanol, ethanol, propanol and butanol). The solubility parameters of the membranes are also calculated. For the unfilled membranes the corresponded values of cohesive energy density and solubility parameter increase in comparison to those of the filled membranes. All the tested membranes show a tendency to swell with ethanol.

Citation Download Citation

Gabriela Ciobanu, Gabriela Carja, Gabriela Apostolescu, and Nicolae Apostolescu "The physicochemical properties of polyurethane membranes determined by swelling measurements", Proc. SPIE 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 72970I (6 January 2009); https://doi.org/10.1117/12.823628

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