نتایج جستجو برای: amine

تعداد نتایج: 20467  

Journal: :Journal of Biological Chemistry 1987

Journal: :Die Naturwissenschaften 1917

2008

A “water free,” proton conducting membrane for use in a fuel cell is fabricated as a highly conducting sheet of converted solid state organic amine salt, such as converted acid salt of triethylenediamine with two quaternized tertiary nitrogen atoms, combined with a nanoparticulate oxide and a stable binder combined with the converted solid state organic amine salt to form a polymeric electrolyt...

Journal: :Dalton transactions 2014
V Rocher J Manerova M Kinnear D J Evans M G Francesconi

A novel and simple preparation of amine-modified γ-Fe2O3 nanoparticles is described. The presence of amine groups on the surface, instead of hydroxyl groups, will allow conjugation of biologically active molecules to the iron oxide nanoparticles without the need for a size increasing silica shell. Furthermore, the outer amine-layer increases the temperature of the γ-Fe2O3 to α-Fe2O3 structural ...

2011
Luis Ángel Garza Rodríguez Sylvain Bernès Perla Elizondo Martínez Blanca Nájera Martínez Sara L. Rodríguez de Luna

The title salt, C(16)H(24)N(4) (2+)·2C(7)H(7)O(3)S(-), crystallizes with the dication situated on an inversion center and the anion in a general position. The cation contains two ammonium and two free amine groups, and the observed conformation for the chain linking the benzene rings is different from that found in the free tetra-amine and in the fully protonated tetra-amine. All amine and ammo...

Journal: :Annals of Surgery 1959

Use of amine solutions for the removal of acid gases such as carbon dioxide (CO2) and hydrogen sulfide (H2S) from natural gas is the most common method, and, in this process, operational problems because of foaming are reported. Foaming can lead to the entrainment of liquid into downstream process equipment and might result in a situation in which the process specification...

Amine compounds are believed to have acceptable results regarding their use as clay swelling inhibitor and corrosion inhibitor additives in drilling fluids. It is crucial to know the capability of amine compounds to enhance the thermal stability of drilling fluid; herein, a water-based fluid composed of biopolymer and other additives as the proper representatives of muds used in the pay zone se...

2006
R. GANAPATHY X. WANG F. DENES

The possibility of generating tailored surface characteristics (adhesion, biocompatibility, wettability, etc.) from plasma modified surfaces by derivatization and grafting reactions, opens up new possibilities for the creation of advanced materials. Implantation of reactive amine (primary amine) functionalities onto synthetic polymeric surfaces under cold plasma conditions one of the potential ...

2012
Bassam Nohra Laure Candy Jean-François Blanco Yann Raoul Zephirin Mouloungui

Aminolysis reaction of glycerol carbonate with primary amine in organic and hydroorganic media leads to the formation of two hydroxyurethane isomers and a partial decomposition of glycerol carbonate into glycerol. Aminolysis with a secondary amine promotes the condensation reaction and limits the formation of glycerol. The ratio of a versus b was determined by zgig C NMR. This technique permits...

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