Results 111 to 120 of about 75,606 (303)

Reactions of (Benzamidomethyl)triethylammonium Chloride with Some Inorganic Nucleophiles in Aqueous Media

open access: yesMolecules, 2006
A variety of benzamidomethyl derivatives were prepared in water under alkaline conditions (pH>9) via reaction of (benzamidomethyl)triethylammonium chloride (1) with different inorganic nucleophiles.
Evamarie Hey-Hawkins   +3 more
doaj   +1 more source

Dependence of Energy Thresholds on Laser Radiation Wavelength in Initiation of Heavy Metal Azides [PDF]

open access: yesarXiv, 2010
The behavior of silver and lead azides (scaly and threadlike crystals, and compacted powders) in initiation of explosive decomposition by laser pulsed radiation has been investigated. Initiation energy thresholds in irradiation at wavelengths of 1064 nm, 532 nm, 354.7 nm, 266 nm corresponding to four laser radiation harmonics have been measured ...
arxiv  

End-group functionalization of poly(2-oxazoline)s using methyl bromoacetate as initiator followed by direct amidation [PDF]

open access: yes, 2019
Poly(2-alkyl/aryl-2-oxazoline)s (PAOx) are an alluring class of polymers for many applications due to the broad chemical diversity that is accessible for these polymers by simply changing the initiator, terminating agent and the monomer(s) used in their ...
Arys, Koen   +4 more
core   +2 more sources

Effectiveness of Sodium Azide Alone Compared to Sodium Azide in Combination with Methyl Nitrosurea for Rice Mutagenesis

open access: yesPlant Breeding and Biotechnology, 2016
Rice seeds of the temperate japonica cultivar Kitaake were mutagenized with sodium azide alone and in combination with methyl nitrosourea. Using the reduced representation sequencing method Restriction Enzyme Sequence Comparative Analysis (RESCAN), the mutation densities, types and local sequence context were determined in the resulting M2 generation ...
Thomas H. Tai   +4 more
openaire   +3 more sources

Self‐Trapped Excitons Activate Pseudo‐Inert Basal Planes of 2D Organic Semiconductors for Improved Photocatalysis

open access: yesAdvanced Materials, EarlyView.
2D organic semiconductors are widely believed to have uniformly active surfaces. This study reveals that their basal planes can be pseudo‐inert due to anisotropic exciton migration. By inducing exciton self‐trapping through dimensional reduction, these inert planes are activated, boosting hydrogen peroxide production by over 350%. The work uncovers key
Jindi Yang   +15 more
wiley   +1 more source

Reaction of Sodium Azide with 1,1'–Dicyclohexenyl–Diepoxides [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2003
Nucleophilic ring opening of dl and meso 1,1¢- dicyclohexenyl diepoxides by sodium azide in dioxane and aqueous alcoholic medium give the corresponding azidoalcohols.
Mohammad Raouf Darvich   +3 more
doaj  

Methionine 129 variant of human prion protein oligomerizes more rapidly than the valine 129 variant - Implications for disease susceptibility to Creutzfeldt-Jakob disease [PDF]

open access: yes, 2004
The human PrP gene (PRNP) has two common alleles that encode either methionine or valine at codon 129. This polymorphism modulates disease susceptibility and phenotype of human transmissible spongiform encyphalopathies, but the molecular mechanism by ...
Abdessamad Tahiri-Alaoui   +56 more
core   +1 more source

Controlled functionalization of graphene oxide with sodium azide

open access: yesNanoscale, 2013
We present the first example of azide functionalization on the surface of graphene oxide (GO), which preserves thermally unstable groups in GO through the mild reaction with sodium azide in solids. Experimental evidence, by (15)N solid-state NMR and other spectroscopic methods, indicates the substitution of organosulfate with azide anions as the ...
Siegfried Eigler   +3 more
openaire   +4 more sources

Controlling Frost Propagation on Polymeric Surfaces Using SI‐ATRP Chemical Micropatterning

open access: yesAdvanced Materials Interfaces, EarlyView.
Local wettability differences on the polymeric substrates grafted with hydrophilic stripes are linked to local variations in the presence and state of molecular water layer (MWL). The localized MWL results in fast‐propagating freezing events on the hydrophilic stripes followed by slower freezing propagation across the more hydrophobic substrate, thus ...
Miisa J. Tavaststjerna   +2 more
wiley   +1 more source

BRAIN DISORDERS (CEPHENOMIOSIS) IN ELKS CAUSED BY CEPHENOMYIA ULRICHII AND PREVENTION OF DISEASE

open access: yesРоссийский паразитологический журнал, 2019
Objective of research: The purpose of this research was to study the changes of histology picture and macroanatomic changes in cephenomiosis of elks and to estimate the efficacy of sodium azide against gadfly larvae.
O. B. Zhdanova   +3 more
doaj  

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