Functionalization of organic membranes by polyelectrolyte multilayer assemblies: Application to the removal of copper ions from aqueous solutions

Long term physical and chemical stability of polyelectrolyte multilayer membranes

“…This has led to a wide variety of possible applications of PEMs, including the modification of membranes to improve many aspects of their performance. Membranes have for instance been modified with PEMs to make membranes low fouling [5,6], responsive [7], but also to produce new nanofiltration [8][9][10][11], bipolar [12], ion selective [13], and solvent resistant membranes [14].…”

A polyelectrolyte–surfactant complex as support layer for membrane functionalization

“…To prevent aggregation, catalytic nanoparticles are usually immobilized on different supports including polyelectrolyte brushes [27] and polyelectrolyte multilayers. [5].…”

“…Novel methods for membrane functionalization are an active research field due to their potential application in diverse areas such as chemical separation [1][2][3][4][5] catalysis [6,7] or chemical sensing [8][9][10][11].…”

“…Some methods as layer-by-layer deposition of polyelectrolytes [1,5] and polymer growth from surfaces [2] represent substantial improvements for the creation of functional membranes. Both of these methods can yield a variety of functional films on surfaces; however, the layer-by-layer method, which typically involves the alternating adsorption of polycations and polyanions, needs a substrate able to anchor the initial layer of polymer.…”

A novel type of polyelectrolyte complex/MWCNT hybrid nanofiltration membranes for water softening

“…Recently, there have been some researches on the preparation of positively charged NF membranes, and the electrostatic LbL is thought to be an alternative method for fabricating positively charged NF membranes. For example, Magnenet et al [31] produced a positively charged NF membrane by alternately depositing poly(allylamine hydrochloride) (PAH) and poly(styrene sulfonate) (PSS) on the functionalized polyethersulfone (PES) membrane with 88% Cu 2 þ rejection. Rajabzadeh et al [26] deposited two bilayers of PSS/PAH on a PES hollow fiber ultrafiltration membrane to prepare positively charged polyelectrolyte complex (PEC) NF membrane with the Mg 2 þ rejection of 94%.…”