Spectroscopic investigations on the binding of ammonium salt of 8-anilino-1-naphthalene sulfonic acid with non-ionic surfactant micelles in aqueous media

2007 ◽  
Vol 251 (2) ◽  
pp. 110-113 ◽  
Author(s):  
Stephanie A. Moore ◽  
Adam A. Harris ◽  
Rama M. Palepu
Keyword(s):  
Ammonium Salt ◽  
Sulfonic Acid ◽  
Aqueous Media ◽  
Ionic Surfactant ◽  
Surfactant Micelles ◽  
Spectroscopic Investigations ◽  
Naphthalene Sulfonic Acid

scholarly journals Interactions of short chain phenylalkanoic acids within ionic surfactant micelles in aqueous media

2012 ◽  
Vol 77 (2) ◽  
pp. 201-210 ◽  
Author(s):  
Kashif Naeem ◽  
Syed Shah ◽  
Bushra Naseem ◽  
Syed Shah
Keyword(s):  
Cetyltrimethylammonium Bromide ◽  
Alkyl Chain ◽  
Aqueous Media ◽  
Sodium Dodecyl ◽  
Standard Free Energy ◽  
Bulk Water ◽  
Uv Spectra ◽  
Ionic Surfactant ◽  
Standard Free Energy Change ◽  
Surfactant Micelles

% SDS KR nema Solubilization and interactions of phenylalkanoic acids induced by cationic surfactant, cetyltrimethylammonium bromide (CTAB) and an anionic surfactant, sodium dodecyl sulfate (SDS) was investigated spectrophotometrically at 25.0?C. The UV spectra of the additives (acids) were measured with and without surfactant above and below critical micelle concentration (cmc) of the surfactant. The presence of alkyl chain in phenylalkanoic acids is responsible for hydrophobic interaction resulting in shift of the spectra towards longer wavelength (red shift). The value of partition coefficient (Kx) between the bulk water and surfactant micelles and in turn standard free energy change of solubilization (?Gp?) were also estimated by measuring the differential absorbance (?A) of the additives in micellar solutions.

scholarly journals Surfactant Micelles Enable Metal-Free Spirocyclization of Keto-Ynamides and Access to Aza-Spiro Scaffolds in Aqueous Media

2019 ◽  
Vol 2019 (41) ◽  
pp. 6989-6993
Author(s):  
Frédéric Beltran ◽  
Andrea V. Vela-Gonzalez ◽  
Tatiana Knaub ◽  
Marc Schmutz ◽  
Marie Pierre Krafft ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Surfactant Micelles ◽  
Metal Free

scholarly journals Smaller, faster, better: modular synthesis of unsymmetrical ammonium salt-tagged NHC–gold(i) complexes and their application as recyclable catalysts in water

2015 ◽  
Vol 13 (31) ◽  
pp. 8556-8560 ◽  
Author(s):  
Katrin Belger ◽  
Norbert Krause
Keyword(s):  
Carboxylic Acids ◽  
Ammonium Salt ◽  
Aqueous Media ◽  
Cyclization Reactions ◽  
Modular Synthesis ◽  
Recyclable Catalysts

Facile access towards unsymmetrical ammonium salt-tagged NHC-gold(i) complexes is described, and their application as recyclable catalysts in cyclization reactions of acetylenic carboxylic acids and amides in aqueous media is demonstrated.

Sign in / Sign up

Export Citation Format

Share Document