Polyelectrolyte complex/PVA membranes for diffusion dialysis

Porous BPPO-based membranes modified by aromatic amine for acid recovery

“…The S value for membrane TPA-0 is found to be 6.34. Similarly the obtained S values for membrane TPA-35 to TPA-47 are in the range of 21.9-38.8 which suggested that the S value for membrane TPA-47 is almost similar to that of PVA-based hybrid membranes (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39) at 25°C [22], (12.1-35.7) at 25°C [16] and (18.5-21) at 25°C [21]. Even obtained S values for membranes TPA-43 and TPA-47 are much higher than that of [14].…”

“…Water uptake of a membrane has an important impact related to its separation phenomena, mechanical and dimensional properties [29,30]. As shown in Fig.…”

Diffusion dialysis membranes with semi-interpenetrating network for acid recovery

“…In our research group, numerous efforts have been rendered towards the improvement of high performance anion exchange membranes with different polymer matrix and accordingly DD performance of synthesized membranes were investigated by evaluating the dialysis coefficient of HCl (U H ) and separation factor (S). U H and S values of different membranes for acid recovery (HCl/FeCl 2 ) via DD process of previously published works [6][7][8][9][10][11][12][13][14] were summarized in Table 1. In our research group, semi-homogeneous membranes were developed to overcome the restrictions facing by the heterogeneous membrane such as high cost and limited applications [15][16][17][18][19].…”

PVA–PSSS membranes for alkali recovery through diffusion dialysis: effect of alkoxysilanes

“…However, the preparation of the multisilicon copolymers is through conventional radical polymerization technique, which lacks effective control over the polymer architectures, compositions, and functionalities [21]. Another problem with multisilicon copolymer is that they tend to become gel during preparation and preservation [12,22] due to the pre-hydrolysis and condensation of the -Si(OR) 3 groups, which is disadvantageous to practical applications.…”