Novel pyridine-based polysulfone, sulfonated polysulfones, and sonicated sepiolite-based nanocomposites for water desalination

Khodami, Samaneh; Babanzadeh, Samal; Mehdipour‐Ataei, Shahram

doi:10.1016/j.micromeso.2019.109951

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…The flask contents were filtered under the reduced pressure and acetic acid was added to the filtrate. The polysulfone was precipitated using methanol and the next was dried in an electric dryer at a temperature of about 110 °C [ 32 ]. Figure 3 shows a simplified scheme of the PSU-BPZ polymerization process.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Polymeric Blends Containing Polysulfone Based on Cyclic Bisphenol

Gargol

Podkościelna

2022

Polymers

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The elaboration of the composition and methods of preparation of new types of materials is an important issue from the plastics industry’s point of view. The paper presents the polysulfone synthesis based on 4,4′-cyclohexylidenebisphenol (bisphenol Z). This compound was used (in an amount of 5 or 10 wt.% sample) for the synthesis and characterization of new polymeric blends based on the two different acrylic resins (EB-150 and EB-600) and the active solvent N-vinyl-2-pyrrolidone (NVP). The weight ratio of the used resin to solvent was 1:2; 1:1 or 2:1. These new materials were obtained applying the photoinitiated free radical polymerization with 2,2-dimethoxy-2-phenyloacetophenone as a photoinitiator used in an amount of 1 wt.%. Six polymeric blends and six copolymers without polysulfone were cured by this method. By means of ATR/FT-IR (Attenuated Total Reflection–Fourier Transform Infrared) spectroscopy the chemical structure of the synthesized polysulfone was proved. The effect of the presence of the polysulfone presence on the thermal properties of the obtained blends was analyzed by means of thermogravimetry and differential thermogravimetry (TG/DTG), as well as differential scanning calorimetry (DSC). Moreover, the dynamic mechanical studies (DMA) of these materials were also carried out, demonstrating which of the materials showed the influence of the percentage of polysulfone on the selected properties in the blended- and parent-copolymers samples.

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Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Polymeric Blends Containing Polysulfone Based on Cyclic Bisphenol

Gargol

Podkościelna

2022

Polymers

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“…The solution of nanomaterial was dispersed using a sonication device for 10 min in an ice bath, then it was added to the polymer solution, and sonication of the solution was kept for another 10 min to obtain a homogeneous dispersion (all nanocomposites were obtained with the same procedure). Nanocomposites that were prepared using modified clay, sepiolite, MWCNT, and GO nanomaterials with PDA named as FAF‐DClay, FAF‐DSep, FAF‐DMWCNT, and FAF‐DGraphene, respectively 25 …”

Section: Methodsmentioning

confidence: 99%

“…Water contact angles of the membranes were measured simply, using Image J software (G10, KRUSS), the angle between the surface of membranes and droplet (5 μl of deionized water on the membrane surface) was measured. This process was done a couple of times from the whole surface to obtain valid data that can be reported 25 …”

Section: Methodsmentioning

confidence: 99%

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

Mehdipour‐Ataei

Babanzadeh

Khodami

2021

Polymers for Advanced Techs

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According to the clean water crisis, purification of water resources is so imperative. Reverse osmosis is the best method for the purification of wastewater. In this article, a new diol and resulting poly(keto ether sulfone) was synthesized and characterized successively. Innovative nanocomposites were prepared with the novel poly(keto ether sulfone) and various nanomaterials including clay, graphene oxide, multi‐walled carbon nanotube, and sepiolite. Polydopamine (PDA) was used to modify the hydrophilic nature of the nanoparticles surface. Thin‐film nanocomposites as reverse osmosis membranes were made by depositing of polyamide on the mentioned nanocomposites and investigated for removing metal ions like Cu (II), Co (II), Cr (II), Hg (II), Ni (II), Zn (II), and Pb (II) from water. The efficiency of membranes constructing from pristine poly(keto ether sulfone) and different nanocomposites as supporting layer of thin‐film nanocomposite were compared. The prepared membrane based on PDA‐modified MWCNT showed the best performance results including pure water flux of 215 L.m−2.h−1 and rejection of 98% for Cr (II).

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“…5,6 Amorphous polymer membranes, in particular, offer many advantages including scalability, processability, cost-effective fabrication, and tunable transport and mechanical properties. 7 Beyond olefin/paraffin separations, amorphous polymers have been used in several other industrial separation applications, including water desalination and purification, 8,9 natural gas production, 10,11 carbon capture, 12,13 and fuel cells. 14,15…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Amorphous polymer membranes, in particular, offer many advantages including scalability, processability, costeffective fabrication, and tunable transport and mechanical properties. 7 Beyond olefin/paraffin separations, amorphous polymers have been used in several other industrial separation applications, including water desalination and purification, 8,9 natural gas production, 10,11 carbon capture, 12,13 and fuel cells. 14,15 The performance of a gas separation membrane is measured by its permeability (overall throughput of components) and selectivity (efficiency of separation); 16 an ideal membrane is both highly permeable and highly selective.…”

Section: Introductionmentioning

confidence: 99%

Evolution of free volume elements in amorphous polymers undergoing uniaxial deformation: a molecular dynamics simulations study

Wernisch,

Al Otmi,

Beauvais

et al. 2024

Mol. Syst. Des. Eng.

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Novel pyridine-based polysulfone, sulfonated polysulfones, and sonicated sepiolite-based nanocomposites for water desalination

Cited by 7 publications

References 31 publications

Synthesis and Characterization of Polymeric Blends Containing Polysulfone Based on Cyclic Bisphenol

Synthesis and Characterization of Polymeric Blends Containing Polysulfone Based on Cyclic Bisphenol

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

Evolution of free volume elements in amorphous polymers undergoing uniaxial deformation: a molecular dynamics simulations study

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