The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 1116-77-4, Name is 4,4-Diethoxy-N,N-dimethyl-1-butanamine, SMILES is CN(C)CCCC(OCC)OCC, in an article , author is Jin, Lei, once mentioned of 1116-77-4, Recommanded Product: 1116-77-4.
Highly Proton Conductive Sulfonyl Imide Based Polymer Blended from Poly(arylene ether sulfone) and Parmax-1200 for Fuel Cells
Thermally and chemically stable, sulfonyl imide-based polymer blends have been prepared from sulfonimide poly(arylene ether sulfone) (SI-PAES) and sulfonimide Parmax-1200 (SI-Parmax-1200) using the solvent casting method. Initially, sulfonimide poly(arylene ether sulfone) (SI-PAES) polymers have typically been synthesized via direct polymerization of bis(4-chlorophenyl) sulfonyl imide (SI-DCDPS) and bis(4-fluorophenyl) sulfone (DFDPS) with bisphenol A (BPA). Subsequently, SI-Parmax-1200 has been synthesized via post-modification of the existing Parmax-1200 polymer followed by sulfonation and imidization. The SI-PAES/SI-Parmax-1200 blend membranes show high ion exchange capacity ranging from 1.65 to 1.97 meq/g, water uptake ranging from 22.8 to 65.4% and proton conductivity from 25,9 to 78.5 mS/cm. Markedly, the SI-PAES-40/SI-Parmax-1200 membrane (blended-40) exhibits the highest proton conductivity (78.5 mS/cm), which is almost similar to Nafion 117 (R) (84.73 mS/cm). The thermogravimetric analysis (TGA) and Fenton’s test confirm the excellent thermal and chemical stability of the synthetic polymer blends. Furthermore, the scanning electron microscopy (SEM) study shows a distinct phase separation at the hydrophobic/hydrophilic segments, which facilitate proton conduction throughout the ionic channel of the blend polymers. Therefore, the synthetic polymer blends represent an alternative to Nafion 117 (R) as proton exchangers for fuel cells.
Interested yet? Read on for other articles about 1116-77-4, you can contact me at any time and look forward to more communication. Recommanded Product: 1116-77-4.