Sorption and permeation of aqueous picolines in elastomeric membranes

Selective polydimethylsiloxane/polyimide blended IPN pervaporation membrane for methanol/toluene azeotrope separation

“…The PV experiments were carried out at 30 ± 1 • C using a batch stirred reactor described by Natke et al [28]. The effective membrane area was 29.40 cm 2 .…”

Separation of organic mixtures by pervaporation using crosslinked rubber membranes

“…As a PV membrane glassy polymer shows high separation factor with poor flux while rubbery membranes shows high degree of flux with very poor separation characteristics especially for separation of traces of organics from its aqueous mixtures [10][11][12]. The rubber membranes with their flexible chain as evidenced by their low T g shows preferential sorption of organic molecules from its mixtures with water.…”

Sorption and Permeation of Aqueous Alkyl Piperazines through Hydrophilic and Organophilic Membranes: A Transport Analysis

“…It was observed that NMP flux increased with temperature. As the temperature rises, the frequency and amplitude of the polymer chain vibration increases (10), resulting in larger diffusion coefficients and hence in higher permeation rates. Similar results were obtained for the NEP-water system using all organophilic membranes.…”

“…The equipment and procedures used to conduct the PV experiments were identical to those used by Netke et al (10). The effective membrane area in contact with the liquid was 38 cm 2 .…”