نتایج جستجو برای: poly 1 4 phenylene ether ether sulfone

تعداد نتایج: 3433402  

Journal: :International Journal of Hydrogen Energy 2023

Hydrogen is considered a potential, clean, and renewable energy for the future. Anion exchange membranes (AEMs) are significant components in AEM fuel cells water electrolysis, crucial devices hydrogen industry. Friedel-Crafts (F–C) reaction has been widely used preparing AEMs due to its versatility, high catalytic efficiency, relatively mild conditions, etc. This review article provides compre...

Journal: :Chemical communications 2012
Jeyoung Park Jisung Kim Myungeun Seo Jinhee Lee Sang Youl Kim

A new class of fluorescent organogelators, pyrene-containing poly(arylene ether sulfone)s, showed two fluorescence switching modes in different gelation solvents. The THF gel exhibited excimer emission due to dimerization of the pyrene groups. In contrast, excimer emission was quenched after gelation in MC because of stacking among the pyrene groups.

Journal: :Biomaterials 2013
Minghao Gu Arturo J Vegas Daniel G Anderson Robert S Langer James E Kilduff Georges Belfort

Using combinatorial methods, we synthesized a series of new vinyl amide monomers and graft-polymerized them to light-sensitive poly(ether sulfone) (PES) porous films for protein resistance. To increase the discovery rate and statistical confidence, we developed high throughput surface modification methods (HTP) that allow synthesis, screening and selection of desirable monomers from a large lib...

Journal: :Materials research express 2023

Abstract This study investigated the separation of bovine serum albumin using a novel matrix mixed membrane composed poly vinyl pyrrolidone and (phenylene ether sulfone)/Nano-silver. The responsive bare modified PEES/Nano-silver membranes were evaluated morphology, wettability, XRD ATR-FTIR. molecular weight cut-off (MWCO), water content, mean pore radius, porosity, pure flux used to evaluate p...

Journal: :Molecules 2016
Atsushi Morikawa

Poly(ether ether ketone) dendrimers and hyperbranched polymers were prepared from 3,5-dimethoxy-4'-(4-fluorobenzoyl)diphenyl ether and 3,5-dihydroxy-4'-(4-fluorobenzoyl)diphenyl ether through aromatic nucleophilic substitution reactions. 1-(tert-Butyldimethylsiloxy)-3,5-bis(4-fluorobenzoyl)benzene was polycondensed with bisphenols, followed by cleavage of the protective group to form linear pol...

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