Synthesis and Characterization of Branched Sulfonated Poly(ether Sulfone-Ketone) Copolymer and Organic-Inorganic Nano Composite Membranes

2007 ◽  
pp. 121-124
Author(s):  
Dong Hoon Lee ◽  
Hye Suk Park ◽  
Dong Wan Seo ◽  
Tae Whan Hong ◽  
Soon Chul Ur ◽  
...  
Keyword(s):  
Composite Membranes ◽  
Synthesis And Characterization ◽  
Nano Composite ◽  
Sulfonated Poly

Synthesis and Characterization of Branched Sulfonated Poly(ether Sulfone-Ketone) Copolymer and Organic-Inorganic Nano Composite Membranes

2007 ◽  
Vol 534-536 ◽  
pp. 121-124
Author(s):  
Dong Hoon Lee ◽  
Hye Suk Park ◽  
Dong Wan Seo ◽  
Tae Whan Hong ◽  
Soon Chul Ur ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Composite Membranes ◽  
Sio2 Nanoparticles ◽  
Scanning Calorimetry ◽  
Nano Composite ◽  
Branched Copolymers ◽  
Branched Copolymer ◽  
20 Nm ◽  
Sulfonated Poly

Branched sulfonated poly(ether sulfone-ketone) copolymer was prepared with bisphenol A, 4,4-difluorobenzophenone, sulfonated chlorophenyl sulfone (40mole% of bisphenol A) and THPE (1,1,1-tris-p-hydroxyphenylethane) as a branching agent. THPE was used 0.4 mol% of bisphenol A to synthesize branched copolymers. Organic-inorganic nano composite membranes were prepared with copolymer and a series of SiO2 nanoparticles (20 nm, 4, 7 and 10 wt%). The composite membranes were cast from dimethylsulfoxide solutions. The films were converted from the salt to acid forms with dilute hydrochloric acid. The membranes were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Sorption experiments were conducted to observe the interaction of sulfonated polymers with water and methanol. Branched copolymer and nano composite membranes exhibited proton conductivities from 1.12x10-3 to 6.04x10-3 S/cm2, water uptake from 52.9 to 62.4%, IEC from 0.81 to 1.21 meq/g and methanol diffusion coefficients from 1.2x10-7 to 1.5x10-7 cm2/S.

Synthesis and characterization of chitosan/ZnO nanoparticle composite membranes

2010 ◽  
Vol 345 (8) ◽  
pp. 994-998 ◽  
Author(s):  
Li-Hua Li ◽  
Jian-Cheng Deng ◽  
Hui-Ren Deng ◽  
Zi-Ling Liu ◽  
Ling Xin
Keyword(s):  
Composite Membranes ◽  
Synthesis And Characterization ◽  
Zno Nanoparticle

scholarly journals Synthesis and Characterization of Nano-sized Zn(OH)2 and Zn(OH)2/PVA Nano-composite

2010 ◽  
Vol 17 (8) ◽  
pp. 757-774 ◽  
Author(s):  
M. Fathima Parveen ◽  
S. Umapathy ◽  
V. Dhanalakshmi ◽  
R. Anbarasan
Keyword(s):  
Synthesis And Characterization ◽  
Nano Composite
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