Topic
Ether
About: Ether is a research topic. Over the lifetime, 46286 publications have been published within this topic receiving 572209 citations. The topic is also known as: ether.
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TL;DR: The morphology and related properties for the aromatic thermoplastic poly(aryl-ether-etherketone) (PEEK) [C6H4O C6H 4 O OC 6H4-CO]n were described in this article, including crystallinity, crystallization and melting behaviour, Iamellar thickness and spherulitic structure.
833 citations
TL;DR: Dimethyl sulfoxide can replace the latter, volume for volume, in a ninhydrin reagent mixture that gives equal performance and has improved stability, and is recommended to replace methyl Cellosolve-containing reagents in the quantitative determination of amino acids by automatic analyzers and by the manual ninHydrin method.
807 citations
Patent•
14 Aug 1990
TL;DR: In this article, the authors proposed to increase an effect to activate interfaces by incorporating a sulfated oligosaccharide deriv. which is useful as a vehicle when emulsion layers or auxiliary layers are formed on various kinds of supporting bodies.
Abstract: PURPOSE: To increase an effect to activate interfaces by incorporating a sulfated oligosaccharide deriv. which is useful as a vehicle when emulsion layers or auxiliary layers are formed on various kinds of supporting bodies. CONSTITUTION: This silver halide photographic sensitive material contains a glycoside of sulfated oligosaccharide expressed by (sugar A)-Q-(sugar)n -Q-(sugar B)-QR or its salt in which >=20% of hydroxyl groups in the sugar part is sulfated with sulfuric acid. In formula, (sugar A) and (sugar B) are same or different monosaccharides. (sugar)n represents a sugar chain with n= 0 to 30 of single monosaccharide or plural kinds of monosaccharides.-Qbetween the monosaccharides is a glycoside bond which represents an ether bond between the first position as the molecular end of the one sugar and a hydroxyl group except for the first position of the other sugar. -QR is a substituent which is bonded with the first position of the molecular end of reduced oligosaccharide. R is C1-C30 alkyl group, alkylene group or alkynyl group which may be substituted or C6-C40 aryl group or heterocyclic group which may be substituted.
790 citations
Patent•
22 Jan 1991TL;DR: Sulfoalkyl ether cyclodextrin derivatives and their use as solubilizing agents for water insoluble drugs for oral, intranasal, or parenteral administration are disclosed in this paper.
Abstract: Sulfoalkyl ether cyclodextrin derivatives and their use as solubilizing agents for water insoluble drugs for oral, intranasal, or parenteral administration are disclosed.
762 citations
TL;DR: Hydrogenolysis of lignin model compounds highlights the potential of this approach for the conversion of refractory aryl ether biopolymers to hydrocarbons.
Abstract: Selective hydrogenolysis of the aromatic carbon-oxygen (C-O) bonds in aryl ethers is an unsolved synthetic problem important for the generation of fuels and chemical feedstocks from biomass and for the liquefaction of coal. Currently, the hydrogenolysis of aromatic C-O bonds requires heterogeneous catalysts that operate at high temperature and pressure and lead to a mixture of products from competing hydrogenolysis of aliphatic C-O bonds and hydrogenation of the arene. Here, we report hydrogenolyses of aromatic C-O bonds in alkyl aryl and diaryl ethers that form exclusively arenes and alcohols. This process is catalyzed by a soluble nickel carbene complex under just 1 bar of hydrogen at temperatures of 80 to 120°C; the relative reactivity of ether substrates scale as Ar-OAr>>Ar-OMe>ArCH2-OMe (Ar, Aryl; Me, Methyl). Hydrogenolysis of lignin model compounds highlights the potential of this approach for the conversion of refractory aryl ether biopolymers to hydrocarbons.
684 citations