Preparation and characterization of porous polyethersulfone (PES) membranes with improved biocompatibility by blending sulfonated polyethersulfone (SPES) and cellulose acetate (CA) – A comparative study

Athira, V B; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1016/j.mtcomm.2020.101544

Cited by 37 publications

(8 citation statements)

References 35 publications

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“…In addition, the absorption bands at both 1150 cm −1 and 1100 cm −1 correspond to the sulfone group in the PES base structure. All the peaks obtained are similar to those reported by Athira et al [3]. To study the effect of different MCC loadings on the fabricated membranes, FTIR spectra of PES/MCC composite membranes were analyzed.…”

Section: Surface Functional Groupssupporting

confidence: 81%

“…2 MCC varied for 0, 1, 3, and 5 wt.%. 3 LiCl calculated from 8 wt.% of the total amount of co-solvent used. 4 DMAc calculated from 92 wt.% of the total amount of co-solvent used.…”

Section: Preparation Of MCC Solutionmentioning

confidence: 99%

“…Ultrafiltration membranes with pore size ranging from 0.001 to 0.1 µm are effectively used to remove suspended solids, bacteria, microorganisms, and viruses from surface water [2]. Polyethersulfone (PES) is one of the engineering polymers broadly used as ultrafiltration membrane materials due to its excellent chemical, mechanical, and thermal properties [3]. However, the main drawback of PES is associated with its non-optimal wettability and hydrophobicity characteristics [4].…”

Section: Introductionmentioning

confidence: 99%

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Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

2021

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A novel polyethersulfone (PES)/microcrystalline cellulose (MCC) composite membrane for humic acid (HA) removal in water was fabricated using the phase inversion method by blending hydrophilic MCC with intrinsically hydrophobic PES in a lithium chloride/N,N-dimethylacetamide (LiCl/DMAc) co-solvent system. A rheological study indicated that the MCC-containing casting solutions exhibited a significant increase in viscosity, which directly influenced the composite membrane’s pore structure. Compared to the pristine PES membrane, the composite membranes have a larger surface pore size, elongated finger-like structure, and presence of sponge-like pores. The water contact angle and pure water flux of the composite membranes indicated an increase in hydrophilicity of the modified membranes. However, the permeability of the composite membranes started to decrease at 3 wt.% MCC and beyond. The natural organic matter removal experiments were performed using humic acid (HA) as the surface water pollutant. The hydrophobic HA rejection was significantly increased by the enhanced hydrophilic PES/MCC composite membrane via the hydrophobic–hydrophilic interaction and pore size exclusion. This study provides insight into the utilization of a low-cost and environmentally friendly additive to improve the hydrophilicity of PES membranes for efficient removal of HA in water.

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Section: Surface Functional Groupssupporting

confidence: 81%

“…2 MCC varied for 0, 1, 3, and 5 wt.%. 3 LiCl calculated from 8 wt.% of the total amount of co-solvent used. 4 DMAc calculated from 92 wt.% of the total amount of co-solvent used.…”

Section: Preparation Of MCC Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

2021

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“…UiO-66-NH 2 was selected for its high hydrothermal stability, 30,40 large surface area, 41 and excellent chemical stability. 31,42 Poly(ethersulfone) (PES) was chosen because of its low cost, 43 outstanding mechanical properties, 44 and excellent hydrothermal stability. 45 In addition, chlorosulfonic acid was used in SPES because of its low cost, strong adaptability, good membrane-forming ability, and easy control of the degree of functionalization.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In this work, a proton exchange membrane was prepared by forming a chemical bond between UiO-66-NH 2 and chlorosulfonated poly(ethersulfones) (PES-SO 2 Cl) with an aryl flexible polymer as the main chain. UiO-66-NH 2 was selected for its high hydrothermal stability, , large surface area, and excellent chemical stability. , Poly(ethersulfone) (PES) was chosen because of its low cost, outstanding mechanical properties, and excellent hydrothermal stability . In addition, chlorosulfonic acid was used in SPES because of its low cost, strong adaptability, good membrane-forming ability, and easy control of the degree of functionalization .…”

Section: Introductionmentioning

confidence: 99%

High Proton Conductivity of the UiO-66-NH₂-SPES Composite Membrane Prepared by Covalent Cross-Linking

Yuanyuan

Wang

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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A sulfonated poly(ethersulfone) (SPES)–metal–organic framework (MOF) film with excellent proton conductivity was synthesized by anchoring UiO-66-NH2 to the main chain of the aromatic polymer through the Hinsberg reaction. The chemical bond was formed between the amino group in MOFs and the −SO2Cl group in chlorosulfonated poly(ethersulfones) to conduct protons in the proton channel of the membrane, making the membrane have excellent proton conductivity. UiO-66-NH2 is successfully prepared as a result of the consistency of the experimental and simulated powder X-ray diffraction (PXRD) patterns of MOFs. The existence of absorption peaks of characteristic functional groups in Fourier transform infrared (FTIR) spectra proved the successful preparation of SPES, PES–SO2Cl, and a composite film. The results of the AC impedance test indicate that the composite film with a 3% mass fraction has the best proton conductivity of 0.215 S·cm–1, which is 6.2 times higher than that of the blended film without a chemical bond at 98% RH and 353 K. To our knowledge, there are rarely any reports on the preparation of a composite membrane by directly linking MOFs and the membrane matrix with chemical bonds. This work provides a good way to synthesize the highly conductive proton exchange film.

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Preparation and surface modification of ultrahigh throughput tannic acid coblended polyethersulfone ultrafiltration membranes for hemodialysis

Zhang

Feng

Wei

et al. 2023

J of Applied Polymer Sci

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Low dialysis and blood incompatibility efficiency are key issues to be addressed for polymeric hemodialysis membranes. To improve the comprehensive performance of hemodialysis membranes, polyethersulfone (PES)/tannic acid (TA) coblended ultrafiltration membranes were prepared and modified with a heparin-like functionalized TA coating. The coblended TA improved the pore structure of the PES ultrafiltration membrane. And it could also undergo π-π conjugation with the heparin-like functionalized TA in the modified solution, resulting in a greater abundance of modified groups loaded on the membrane surface and pores close to the surface. The modified coating further improved the membrane performance. The physicochemical properties, solute filtration, and blood compatibility properties of the membrane were tested. The effect of TA on the pore structure of the membrane and the presence of modified layers were demonstrated by morphological and chemical structure analyses. The final modified membrane had an ultrahigh water flux (1053 L/m 2 Áh), improved dialysis performance (BSA retention >99%, Lysozyme clearance >30% and Urea clearance >90%), and excellent hemocompatibility (The hemolysis rate was 1.31%, and APTT, PT, and TT values were increased by 40.8%, 74.2%, and 85.9%, respectively). This study shows that TA has great potential for improving the pore structure of polymeric membranes.

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Preparation and characterization of porous polyethersulfone (PES) membranes with improved biocompatibility by blending sulfonated polyethersulfone (SPES) and cellulose acetate (CA) – A comparative study

Cited by 37 publications

References 35 publications

Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

High Proton Conductivity of the UiO-66-NH₂-SPES Composite Membrane Prepared by Covalent Cross-Linking

Preparation and surface modification of ultrahigh throughput tannic acid coblended polyethersulfone ultrafiltration membranes for hemodialysis

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Preparation and characterization of porous polyethersulfone (PES) membranes with improved biocompatibility by blending sulfonated polyethersulfone (SPES) and cellulose acetate (CA) – A comparative study

Cited by 37 publications

References 35 publications

Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal

High Proton Conductivity of the UiO-66-NH2-SPES Composite Membrane Prepared by Covalent Cross-Linking

Preparation and surface modification of ultrahigh throughput tannic acid coblended polyethersulfone ultrafiltration membranes for hemodialysis

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Product

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High Proton Conductivity of the UiO-66-NH₂-SPES Composite Membrane Prepared by Covalent Cross-Linking