Preparation of new proton exchange membranes using sulfonated poly(ether sulfone) modified by octylamine (SPESOS)
نویسندگان
چکیده
منابع مشابه
Modified polyether-sulfone membrane: a mini review
Polyethersulfone has been widely used as a promising material in medical applications and waste-treatment membranes since it provides excellent mechanical and thermal properties. Hydrophobicity of polyethersulfone is considered one main disadvantage of using this material because hydrophobic surface causes biofouling effects to the membrane which is always thought to be a serious limitation to ...
متن کاملPhosphorus-Containing Sulfonated Polyimides for Proton Exchange Membranes
Synthesis and characterization of the novel sulfonated BAPPO monomer and its use in the synthesis of a new phosphine oxide-based sulfonated polyimide are described. BTDA, 6FDA, and DDS were used as monomers in the polyimide synthesis. Sulfonated polyimide membranes were obtained by a solution thermal imidization method. The thermal behavior of the polymers was investigated by DSC and TGA. The m...
متن کاملA new supramolecular sulfonated polyimide for use in proton exchange membranes for fuel cells.
Uracil-terminated telechelic sulfonated polyimides (SPI-U) were transformed into noncovalent network membranes through biocomplementary hydrogen bonding recognition in the presence of an adenine-based crosslinking agent. SPI-U membrane exhibited dramatically improved methanol permeability, oxidative stability, proton conductivity, and selectivity relative to those of the standard SPI.
متن کاملA new supramolecular sulfonated polyimide for use in proton exchange membranes for fuel cellsw
Nonfluorinated polymeric materials are attracting increasing attention as alternatives to perfluorinated polymer membranes, such as Nafion or Aciplex, for use as proton exchange membranes (PEMs) in fuel cells, because of their advantages in terms of cost, monomer toxicity, ease of synthesis, and structural diversity. Although nonfluorinated PEMs can achieve high proton conductivities when they ...
متن کاملCharacterization of Polyethylene-Graft-Sulfonated Polyarylsulfone Proton Exchange Membranes for Direct Methanol Fuel Cell Applications
This paper examines polymer film morphology and several important properties of polyethylene-graft-sulfonated polyarylene ether sulfone (PE-g-s-PAES) proton exchange membranes (PEMs) for direct methanol fuel cell applications. Due to the extreme surface energy differences between a semi-crystalline and hydrophobic PE backbone and several amorphous and hydrophilic s-PAES side chains, the PE-g-s-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials Chemistry and Physics
سال: 2011
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2011.03.031