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Cationic surfactants-controlled geometry and dimensions of polymeric membrane pores

S.I. VOICU1,* , A. DOBRICA1, S. SAVA1, A. IVAN1, L. NAFTANAILA1

Affiliation

  1. University Politehnica from Bucharest, Faculty of Applied Chemistry and Materials Sciences, 1-7 Gheorghe Polizu, Bucharest, 011061, Romania

Abstract

The use of polymeric membranes is well known and irreplaceable in various areas such as hemodialysis, filtration and water purification, food or pharmaceutical industry. The efficiency of any of these processes depends on membrane pore size and distribution of the active layer of membrane. In order to control this parameter, this article presents the results obtained from modeling a porous polysulfone membrane using four cationic surfactants as additives in the polymer solution. The obtained membranes were characterized by SEM microscopy and specific tests for membranes and membrane processes (solvent permeation, retention of proteins)..

Keywords

Polysulfone membrane, Surfactant, Desired porosity.

Submitted at: July 20, 2012
Accepted at: Oct. 30, 2012

Citation

S.I. VOICU, A. DOBRICA, S. SAVA, A. IVAN, L. NAFTANAILA, Cationic surfactants-controlled geometry and dimensions of polymeric membrane pores, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 11-12, pp. 923-928 (2012)