نتایج جستجو برای: carbonyl and carboxyl functionalized

تعداد نتایج: 16836415  

Journal: :Plasma 2022

Plasma co-polymers (co-p) were deposited with an atmospheric pressure plasma jet (APPJ) using a precursor mixture containing hexamethyldisiloxane (HMDSO) and limonene. A coating fragments from both precursors siloxane, carbonyl nitrogen functional groups was deposited. The flow rate of limonene found to be important parameter for co-polymerization tune the formation structure groups. FTIR XPS a...

Journal: :ACS applied energy materials 2022

Cellulose nanofibers (CNFs) are bio-sourced nanomaterials, which, after proper chemical modification, exhibit a unique ability to disperse carbon-rich micro- and nanomaterials can be used in the design of mechanically strong functional nanocomposites. When preparation graphite anodes for Li-ion batteries, they have potential outperform conventional binders such as carboxymethyl cellulose (CMC) ...

Journal: :Electrochimica Acta 2021

Electrochemical Surface Oxidation Enhanced Raman Scattering (EC-SOERS) is a new phenomenon that provokes the enhancement of signal during oxidation metal surface. Studies carried out so far indicate carbonyl and carboxyl group are necessary to observe this with delocated charge being an important factor. In work, factors EC-SOERS for different molecules, which present highly group, have been as...

2012
Viktor A Zapol’skii Jan C Namyslo Armin de Meijere Dieter E Kaufmann

The nitropolychlorobutadienes 3, 4 are valuable building blocks for various amination and successive heterocyclization products. Nucleophilic substitution reactions of the partially protected, bioactive amines 1, 2 with either vinyl, imidoyl or carbonyl chlorides result in the formation of the enamines 11, 12, 13, 16, 25, the amidine 6, and the amides 20, 21, respectively. In the following, cyc...

Journal: :Journal of the American Chemical Society 2011
Piotr Kwiatkowski Teresa D Beeson Jay C Conrad David W C MacMillan

The first highly enantioselective α-fluorination of ketones using organocatalysis has been accomplished. The long-standing problem of enantioselective ketone α-fluorination via enamine activation has been overcome via high-throughput evaluation of a new library of amine catalysts. The optimal system, a primary amine functionalized Cinchona alkaloid, allows the direct and asymmetric α-fluorinati...

Journal: :Cellulose 2021

Bamboo, as a fast-grown forest resource, can be functionalized by metal–organic frameworks (MOFs) with various potential applications. However, the stability of MOFs immobilized on bamboo surface remains to improved. In this work, MOF199, known HKUST-1, was in situ anchoring moso via regulating pretreatment and green two-step synthesis route. The route completed under room temperature both prec...

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