Preparation of alloyed poly(ether block amide)/poly(ethylene glycol diacrylate) membranes for separation of CO2/H2 (syngas application)

Lithium-ion polymer cells assembled with a reactive composite separator containing vinyl-functionalized SiO2 particles

“…These peaks are characteristic of C]C double bonds [27,28], indicating that the SiO 2 particles contained vinyl groups, allowing free radical reactions with TEGDA in the gel electrolyte precursor. The peaks observed at 1725 and 1636 cm À1 for TEGDA were assigned to the carbonyl groups and the C]C double bond, respectively [29]. The FT-IR spectrum of the cross-linked composite separator revealed no peaks corresponding to C]C double bonds in the SiO 2 particles.…”

Synthesis and characterization of high permeable PEBA membranes for CO 2 /CH 4 separation

“…On the other hand, an increase in feed pressure also leads to small increase in permeation of CH 4 as the crystallinity of the polymer matrix prevents the compactness of membrane [20,31]. Consequently, CO 2 permeation increase is more severe than that of CH 4 , leading to significant improvement in selectivity, as shown in Figure 3.…”

“…However, noncondensable gas (CH 4 ) often shows reverse solubility behavior; increase in temperature led to decrease in its solubility. It has been stated that the sorption of gases into a polymeric membrane consists of two thermodynamic processes: the condensation and then the integration of the molecule into the polymer matrix [16,31,36]. For non-condensable gases, the enthalpy change of the integration step dominates as their interaction with the polymer matrix is weak.…”

Gas permeation, sorption and diffusion through PEBA/SiO 2 nanocomposite membranes (chemical surface modification of nanoparticles)

“…Using the constructed setup permeability and sorption coefficients of the membranes were measured by applying the constant volume and the dual volume methods, respectively [28]. Detailed information about the constructed set up has been presented in our previous work [27].…”