Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 440, Issue -, Pages 140-147Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2013.03.013
Keywords
Propylphosphonic anhydride; N-propylphosphonic anhydride; UF membrane; Permeation; Antifouling
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Funding
- Defense Research and Development Organization (DRDO), Government of India
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A novel water soluble Chitosan derivative N-propylphosphonic Chitosan (NPPCS) having a terminal phosphonic acid group was synthesized by reacting Chitosan with Hydroxybenzotriazole (HOBt) and propylphosphonic anhydride (T3P)(R) via one pot reaction. The novel derivative was characterized by H-1 NMR, Attenuated Total Reflectance Infra Red (ATR-IR) spectroscopy and XRD. Due to insolubility of NPPCS in organic solvents, a new process was demonstrated for blending of NPPCS with Polysulfone. The proper blending of NPPCS with Polysulfone was confirmed by ATR-IR spectroscopy. The improved hydrophilicity of PSf/NPPCS membranes was confirmed by contact angle measurement. The permeation studies showed increased flux of PSf/NPPCS membranes as compared to the pristine Polysulfone membrane. The antifouling property of PSf/NPPCS membrane was determined by Bovine Serum Albumin (BSA) protein rejection studies. The membranes showed the enhanced antifouling property as compared to pristine Polysulfone membranes with a maximum of 74% flux recovery ratio (FRR) value. (C) 2013 Elsevier B.V. All rights reserved.
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