Morphologies and properties of poly(phthalazinone ether sulfone ketone) matrix ultrafiltration membranes with entrapped TiO2 nanoparticles

• Published in: Journal of applied polymer science Vol. 103; no. 6; pp. 3623 - 3629
• Main Authors: Li, Jin-Bo, Zhu, Jie-Wu, Zheng, Mao-Sheng
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.03.2007; Wiley
• Subjects: Applied sciences; Composites; Exact sciences and technology; Exchange resins and membranes; Forms of application and semi-finished materials; mechanical strength; nanoparticles; poly(phthalazinone ether sulfone ketone); Polymer industry, paints, wood; Technology of polymers; titanium dioxide; ultrafiltration membrane; Ethersulfone copolymer; Titanium IV Oxides; Transport properties; Porous membrane; Composite material; Thermal stability; Water permeability; ultrafiltration membrane; Wettability; Ultrafiltration; nanoparticles; Nitrogen heterocycle copolymer; Aromatic copolymer; Surface properties; Nanocomposite; Mechanical properties; Tensile property; Experimental study; Ketone copolymer; Thermal properties; mechanical strength; Morphology; Concentration effect; titanium dioxide; poly(phthalazinone ether sulfone ketone)
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.25428

Poly(phthalazine ether sulfone ketone) (PPESK) is a newly developed membrane material with superior thermal stability and comprehensive properties. Titanium dioxide (TiO2)‐entrapped PPESK ultrafiltration (UF) membranes were formed by dispersing uniformly nanosized TiO2 particles in the casting solutions. Initially, the inorganic nanoparticles were organically modified with silane couple reagent to overcome the aggregation and to improve the dispersibility in organic solvent. The membranes were prepared through the traditional phase inversion method. The effects of inorganic TiO2 nanoparticles on the membrane surface morphology and cross section structure were investigated using scanning electronic microscopy (SEM) and atomic force microscopy (AFM). Water contact angle (CA) measurement was conducted to investigate the hydrophilicity and surface wettability of the membranes. The influence of TiO2 on the permeability, antifouling, and tensile mechanical properties of the PPESK membranes were evaluated by UF experiments and tensile tests. The experimental results showed that the obtained TiO2‐entrapped PPESK UF membranes exhibit remarkable improvement in the antifouling and mechanical properties because of the introduction of TiO2 nanoparticles. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 3623–3629, 2007