WebFeb 15, 2004 · Synthesis of NTDA-BAPBDS polyimide and BAPBDS-based … WebNov 23, 2024 · With fast consumption of non-renewable energy such as coal and petroleum, proton exchange membrane (PEM) fuel cells (PEMFCs) as promising energy conversion devices have recently attracted increasing attention, due to their high energy efficiency, simplicity, quick start-up and environmental friendliness for automotive, stationary and …
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WebJun 19, 2009 · In the case of BAPBDS-based co-SPIs, although not being clearly … WebBAPBDS was synthesized according to the previously reported method [33]. Synthesis of amine-terminated polybenzimidazole oligomer To a 100-mL dry three-neck flask equipped with a nitrogen inlet and a nitrogen outlet were added 54 g of PPA and 14 g of phosphorus pentoxide under nitrogen flow. The mixture was heated at 120 C and mechanically ... greatest country artists of all time
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WebDec 21, 2005 · Sulfonated polyimide (SPI) membranes consisting of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), 3,5-diaminobenzoic acid (DBA), and 4,4‘-diaminodiphenyl ether 2,2‘-disulfonic acid (SODA) were synthesized over a wide range of DBA/SODA molar compositions. A sulfonic acid-containing cross-linking agent, N,N-bis(2 … WebHighly charged and stable cross-linked 4, 4′-bis (4-aminophenoxy) biphenyl-3, 3′-disulfonic acid (BAPBDS)-sulfonated poly (ether sulfone) polymer electrolyte membranes impervious to methanol. Bijay P Tripathi, Tina Chakrabarty, Vinod K Shahi. Journal of Materials Chemistry, 2010, 20, 8036-8044. Web酸(bapbds)单体, 并获得了不同结构的磺化聚酰亚胺. 研究发现, 由于bapbds 具有更好的柔 … flipkart lite download
