Influence of the diamine structure on the nanofiltration performance, surface morphology and surface charge of the composite polyamide membranes

A comprehensive review on surface modified polymer membranes for biofouling mitigation

“…Among the active monomers used to form a functional PA layer on the RO/NF membranes, m-phenylenediamine (MPD) and trimesoyl chloride (TMC) are the most common [77]. Recently novel monomers have been suggested for preparation of TFC membranes via the IP technique [78]. These monomers contain more functional or polar groups, so the prepared membrane exhibits a smoother surface or better hydrophilicity, which is advantageous to the improvement of antifouling properties of the membranes.…”

Preparation and characterization of asymmetric polyethersulfone and thin-film composite polyamide nanofiltration membranes for water softening

“…In this technique, a thin film is introduced by forming an ultra-thin dense layer on a porous substrate. In interfacial polymerization method, reactive monomers are dissolved in two immiscible phases and the polymerization of the reactive monomers occurs on the surface of the porous support membrane [11][12][13]. On the other hand, polymerization reaction eventuates at the interface of the two liquids that are immiscible.…”

Processing of biscuit industrial effluent using thin film composite nanofiltration membranes

“…[16] Practically, the polymerization reaction stops when the interfacial polyamide film prevents any further diffusion of amine molecules into the organic phase. [17,18] In the synthesis of NF membrane, several factors such as nature and concentration of monomer, [19,20] solvent type, [21,22] cross-linking agent, [23] and phase-transfer catalyst [24] can influence the structure and property of the polyamide layer. For instance, a highly hydrophilic NF membrane for desalination and water treatment was developed by Ahmad et al, [25] through interfacial polymerization using TMC, PIP, and 3,5-diaminobenzoic acid.…”