This paper deals with a theoretical investigation of gas transport properties in a pure and modified PEBAX block copolymer membrane with N-ethyl-o/p-toluene sulfonamide (KET) as additive molecules. Molecular dynamics simulations using COMPASS force field, Gusev-Suter Transition State Theory (TST) and Monte Carlo methods were used. Bulk models of PEBAX and PEBAX/KET in different copolymer/additi...

PURPOSE We explored the performance of and pressure elevation caused by small-diameter microtubes used to reduce overfiltration. METHODS Using a syringe pump-driven constant-flow setting (2 µL/min), pressures were measured for polytetrafluoroethylene (PTFE) microtubes 5 mm in length with inner diameters of 51, 64, and 76 µm and for polyether block amide (PEBAX) microtubes with an inner diamet...

Wang, Qing, Hans R. Brunner, and Michel Burnier. Determination of cardiac contractility in awake unsedated mice with a fluidfilled catheter. Am J Physiol Heart Circ Physiol 286: H806–H814, 2004. First published September 25, 2003; 10.1152/ajpheart.00291.2003.— Today, cardiac contractility in mice is exclusively measured under anesthesia or in sedated animals because the catheters available are ...

Today, cardiac contractility in mice is exclusively measured under anesthesia or in sedated animals because the catheters available are too rigid to be used in awake mice. We therefore developed a new catheter (Pebax 03) to measure cardiac contractility in conscious mice. In this study, we evaluated the accuracy and utility of this new catheter for assessment of cardiac contractility in anesthe...

Poly(ether-block-amide) (PEBA, commercialized as Pebax) copolymer membranes show a highly promising platform for preparing high-performance CO2 capture from process streams containing CH4 and N2. Pebax combines high affinity with the desired mechanical strength polymeric thanks to its flexible polyether segment hard polyamide block, respectively. Furthermore, researchers have been improving per...

in this work, novel thin film composite membranes (tfcs) of poly (ether-6-block amide) (pebax-1657) on a polyvinyl chloride (pvc) ultrafiltration membrane as support were prepared using inclined coating method for co2 separation. investigating the effects of top selective layer thickness formed by controlling the coating angle (15-60°) and polymer solution concentration (5-10 wt.%), and also, t...

Water transport through membranes is an attractive topic among the research dedicated to dehydration processes, microenvironment regulation, or more simply, recovery of freshwater. Herein, atomistic computer simulation proposed provide new insights about a water vapor mechanism PEBAX filled with ionic liquid (IL) [C12C1im]Cl. Starting from experimental evidence that indicates effective increase...

the performances of two-phase polymer-liquid pebax®/polyethylene glycol (peg) and three-phase polymer-liquid-solid pebax®/peg/mwnt thin film composite membranes for co2 and ch4 permeation were studied. the effect of temperature and mwnt/pebax® ratio on single gas (co2 and ch4) permeability was investigated. the permeation of both gases was measured at different temperatures from 303 to 323 ˚k. ...

The performances of two-phase polymer-liquid PEBAX®/polyethylene glycol (PEG) and three-phase polymer-liquid-solid PEBAX®/PEG/MWNT thin film composite membranes for CO2 and CH4 permeation were studied. The effect of temperature and MWNT/PEBAX® ratio on single gas (CO2 and CH4) permeability was investigated. The permeat...

The performances of two-phase polymer-liquid PEBAX®/polyethylene glycol (PEG) and three-phase polymer-liquid-solid PEBAX®/PEG/MWNT thin film composite membranes for CO2 and CH4 permeation were studied. The effect of temperature and MWNT/PEBAX® ratio on single gas (CO2 and CH4) permeability was investigated. The permeat...