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Title: Studies on polyamide imide incorporated ultra and nanofiltration membranes
Researcher: Rajesh S
Guide(s): Mohan D
Keywords: polyamide imide, nanofiltration, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, atomic force microscopy
Upload Date: 15-Jan-2014
University: Anna University
Completed Date: 
Abstract: Membrane technology has become an attractive alternative to many energy-intensive separation processes, because separation using membranes do not require additive and they can be performed isothermally at low temperatures with minimum energy consumption. Thus the objective of the present work is to focus on the preparation and characterization of polyamide-imide incorporated high performance ultra and nanofiltration membranes to meet the requirement of various industrial separations. The fouling resistant capability of the membranes was studied by bovine serum albumin as the model protein and increase in resistance during protein filtration was calculated by means of resistance in series model analysis. The fouled membranes were characterized by AFM imaging and these membranes were cleaned by washing with deionized water and subsequent sonication. From the thermal behavior pattern obtained from thermogravimetric analysis it was concluded that, thermal stability of the PES membranes was significantly improved by the addition of PAI. From the mechanical studies it was observed that, addition of PAI phase increased both tensile strength and elongation at break up to 80/20 blend composition and further increase in PAI composition showed a negative deviation from the additive line. The obtained results demonstrated that the PAI composition had a valuable role on the rejection of humic acid (HA) molecules and all the blend membranes revealed higher rejection in comparison to pure PES. Overall results suggest that membrane morphology, pure water flux, water content, porosity and hydrophilicity of the prepared CA/PAI ultrafiltration and PES/PAI nanofiltration membranes improved was significantly by the incorporation of PAI. Therefore, PAI should be considered as effective modification agent for the development of low energy, antifouling ultra and nanofiltration membranes for various industrial separations. newline newline newline
Pagination: xxxii, 239
Appears in Departments:Faculty of Science and Humanities

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01_title.pdfAttached File49.36 kBAdobe PDFView/Open
02_certificates.pdf521.42 kBAdobe PDFView/Open
03_abstract.pdf21.08 kBAdobe PDFView/Open
04_acknowledgement.pdf15.07 kBAdobe PDFView/Open
05_contents.pdf73.02 kBAdobe PDFView/Open
06_chapter 1.pdf248.45 kBAdobe PDFView/Open
07_chapter 2.pdf215.46 kBAdobe PDFView/Open
08_chapter 3.pdf1.41 MBAdobe PDFView/Open
09_chapter 4.pdf865.99 kBAdobe PDFView/Open
10_chapter 5.pdf34.64 kBAdobe PDFView/Open
11_references.pdf77.89 kBAdobe PDFView/Open
12_publications.pdf13.77 kBAdobe PDFView/Open
13_vitae.pdf13.16 kBAdobe PDFView/Open

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