MOLECULAR MOTION-PERMEABILITY RELATIONSHIPS IN POLYCARBONATE/LIQUID CRYSTAL (EBBA) COMPOSITE MEMBRANE

Abstract
The diffusive permeability coefficient to water for the polymer/EBBA composite membrane reveals a distinct jump in the vicinity of the crystal-liquid crystal phase transition temperature of EBBA. The permeability coefficients to hydrocarbon gases increase 100∼200 times over several degrees in the phase transition temperature range.