Grafting polyzwitterions onto polyamide by click chemistry and nucleophilic substitution on nitrogen: A novel approach to enhance membrane fouling resistance

• Published in: Journal of membrane science Vol. 449; pp. 50 - 57
• Main Authors: Yu, Hai-Yin, Kang, Yan, Liu, Yaolin, Mi, Baoxia
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.01.2014; Elsevier
• Subjects: Antifouling; Applied sciences; artificial membranes; azides; binding sites; bromination; bromine; Chemistry; Click chemistry; Colloidal state and disperse state; cycloaddition reactions; desalination; Exact sciences and technology; Exchange resins and membranes; Forms of application and semi-finished materials; fouling; Fourier transform infrared spectroscopy; General and physical chemistry; hydrophilicity; Marine; Membranes; nitrogen; Nucleophilic substitution on nitrogen; osmosis; Polyamide; polyamides; Polymer industry, paints, wood; polymerization; Polyzwitterion; Surface modification; Technology of polymers; water purification; X-ray photoelectron spectroscopy; Polyamide; Surface modification; Click chemistry; Polyzwitterion; Antifouling; Nucleophilic substitution on nitrogen; Polymeric membrane; Modification; Nylon; Fouling; Nitrogen; Grafting; Nucleophilic substitution

We present a first-of-its-kind use of click chemistry to graft polyzwitterions (PZs) onto polyamide, the most widely used material to make semi-permeable membranes for desalination and water purification. We have also experimentally proven that SN2 nucleophilic substitution on nitrogen can occur on...