02487nam a2200277 a 4500 vtls000045053 KUKTEM 20251114204421.0 100128t2009 my a f m 000 0 eng|d THE0003614(Local) 201905152050 zulaiha 201108031256 Fida 201107132306 VLOAD 201002091043 ida 201001281225 ida UMP TK2931 .A93 2009 rs Bc. Mohd Norazam Md Aris Development and characterization of sulfonated polyethersulfone for proton exchanfe membrane fuel cell application/ Mohd Norazam Md Aris Development and characterization of sulfonated polyethersulfone for proton exchanfe membrane fuel cell application [computer file] Kuantan, Pahang : UMP, 2009 47 p. : ill. (some col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of of Chemical engineering (Gas Technology)) -- Universiti Malaysia Pahang - 2009 Includes bibliographical references Sulfonated polyethersulfone (SPES) with 20% concentration by weight were prepared with concentrated sulfonic acid at room temperature. Membrane solution developed in this study consisted of polyethersulfone dissolved in N,N – Dimethylformamide (DMF) as solvent, fuming sulfuric acid (36%) and concentrated sulfuric acid (95%-97%) as the sulfonating agent. The solution was cast manually at temperature between 25oC-28 oC. The investigation on water uptake, TGA, CHNOS elemental analysis, and FTIR has been conducted. Successful introduction of the sulfonated groups was confirmed by using the FTIR spectra in the wave number range 1020cm-1-1030 cm-1 which attributed to the symmetrical stretch of the sulfonated group. It was found that sulfonated membrane produced from mixed sulfonating agent (98% H2SO4 and 36% H2SO4.SO3) have higher degree of swelling. The type and ratio of the sulfonating agent has been identified as one of the most influential parameter in determining the bonding of -HCO3 as well as the membrane performance thus, producing different morphology. The parameter such as sulfonating agent ratio and type used strongly affects the membrane performance. -Author- Proton exchange membrane fuel cells Design and construction Electrochemistry Membranes (Technology) 0 0 0 1 10000 10000 2019-09-04 0 TK2931 .A93 2009 rs Bc. 0000043081 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 4072 | TK2931 .A93 2009 rs Bc. 0000043082 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1676 1682 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*6502*9992