Role of the surface composition of the polyethersulfone–TiiP–H2T4 fibers on lead removal: from electrostatic to coordinative binding

Synthesis and Characterization of Copoly(Ether Sulfone)s with Different Percentages of Diphenolic Acid Units

“…Engineering thermoplastic aromatic poly(ether sulfone)s (PES)s show remarkable chemical and thermal stability, excellent strength and flexibility, transparency, as well as high glass transition temperature, good film forming properties, resistance to hydrolysis and oxidation processes, good optical properties, resistance to extreme pH values, and low creep [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. As a function of their inherent properties, (PES)s have found remarkable application in the fields of materials science, biology and polymer science [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. However, despite the remarkable progress in their synthesis and applications, the materials have some limitations, including stress cracking with certain solvents, poor resistance to cracking and weathering.…”

“…The introduction of functional groups into the polysulfone main chains could overcome these limitations and also extend the range of potential applications of these polymers through the specific properties gained. The literature reports that a wide range of chemical, mechanical, physical, morphological and thermal characteristics can be obtained by functionalization of the made PESs or varying the structure of the monomer units in the copolymers synthesized [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. Due to their antimicrobial action, solubility and separation characteristics, water permeability, the functional groups, which modify the hydrophilicity of polysulfones, are of particular interest for biomedical applications, and in general, the material sciences [ 16 ].…”

“…The introduction of specific functionality to PES has been accomplished by: (I) The functional monomer approach allowing modification at the polymerization stage; (II) the post-functionalization of commercial polymers [ 3 , 6 , 10 , 17 , 18 , 19 , 20 , 26 , 28 , 30 , 31 ]. The different functional groups linked to the PES chains include acids, alcohols, amine, halides, phenyl and polymerizable groups [ 3 , 6 , 10 , 17 , 18 , 19 , 20 , 26 , 28 , 30 , 31 , 32 ]. Dizman et al (2013) have discussed specific examples of both functional monomer and post functionalization methods [ 4 ].…”

“…Dizman et al (2013) have discussed specific examples of both functional monomer and post functionalization methods [ 4 ]. Several authors have introduced the hydrophilic carboxylic (COOH) function into PES to overcome the problems due to its hydrophobicity [ 3 , 17 , 18 , 19 , 20 , 26 , 28 , 30 , 31 , 32 ]. COOH groups not only induce/lead to hydrophilicity, but also increase the pH sensitivity [ 32 ], as well as the blood compatibility of PES materials [ 33 ].…”

Polyethersulfone Mats Functionalized with Porphyrin for Removal of Para-nitroaniline from Aqueous Solution

“…Polyethersulfone (PES) mats are largely used in membrane technology for water treatment due to their insolubility in water as well as their good mechanical and thermal properties [27,28,29]. Moreover, functionalized PES fibers have proved to be effective for applications in photocatalysis [24,30] and heavy metal removal [23,31,32,33], and electrospun fibers functionalized with porphyrins are suitable for the detection and removal of unwanted pollutants in air and water. In fact, porphyrins and metallo-porphyrins are widely used for developing sensing systems due to their coordination sites for axial ligation and significant optical modifications which provide evidence of successful core complexation [34].…”