A novel poly(aryl ether sulfone) ionomer containing hexaalkylguanidinium groups was synthesized, and membranes formed from this polymer displayed large ionic clusters, high hydroxide conductivity, and excellent solubility in low boiling point water-soluble solvents such as ethanol and methanol.
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http://dx.doi.org/10.1039/c0cc01834a | DOI Listing |
Chem Sci
October 2024
Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
ACS Appl Mater Interfaces
September 2024
School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China.
Poly(aryl ether) materials are used in a wide range of applications in the communications and microelectronics fields for their outstanding mechanical and dielectric properties. In order to further improve the comprehensive performance, this work reports a series of cross-linkable poly(aryl ether)s (UCL-PAEn) containing trifluoroisopropyl and perfluorobiphenyl structures using 2,2-bis(4-hydroxyphenyl)hexafluoropropane, 2,2'-diallyl bisphenol A, and perfluorobiphenyl as starting materials. Their chemical structures and the effect of changes in the allyl content on the properties are thoroughly investigated.
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August 2024
School of Chemistry and Life Science, Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province, Changchun University of Technology, Changchun, Jilin 130012, P. R. China.
In this work, a proton-conductive inorganic filler based on polyoxovanadate (NH)[MnVO] (AMV) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide (EMIM TFSI) was synthesized for hybridization with sulfonated poly(aryl ether ketone sulfone) (SPAEKS) to address the "trade-off" between high proton conductivity and mechanical strength. The novel inorganic filler AMV-EMIM TFSI (AI) was uniformly dispersed and stable within the polymer matrix due to the enhanced ionic interaction. AI provided additional proton transport sites, leading to an elevated ion exchange capacity (IEC) and improved proton conductivity, even at low swelling ratios.
View Article and Find Full Text PDFPolymers (Basel)
June 2024
College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
Due to the specificity, high efficiency, and gentleness of enzyme catalysis, the industrial utilization of enzymes has attracted more and more attention. Immobilized enzymes can be recovered/recycled easily compared to their free forms. The primary benefit of immobilization is protection of the enzymes from harsh environmental conditions (e.
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2024
School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China.
In this paper, we successfully synthesize phosphoric acid functionalized graphene oxide (PGO) based on acid modification of graphene oxide. The composite membrane is further prepared by adding PGO into sulfonated poly(aryl ether ketone sulfone) containing carboxyl groups matrix (C-SPAEKS). The PGO as well as the composite membranes were characterized by a series of tests.
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