Novel amino acid-based surfactant for silicone emulsification and its application in hair care products: a promising alternative to quaternary ammonium cationic surfactants

2017 ◽  
Vol 39 (5) ◽  
pp. 556-563 ◽  
Author(s):  
M. Fujii ◽  
M. Inoue ◽  
T. Fukami
Keyword(s):  
Amino Acid ◽  
Quaternary Ammonium ◽  
Cationic Surfactants ◽  
Promising Alternative ◽  
Hair Care ◽  
Quaternary Ammonium Cationic Surfactants

Surface enhanced infra-red spectroscopy with modified silver nanoparticles (AgNPs) for detection of quaternary ammonium cationic surfactants

2019 ◽  
Vol 43 (21) ◽  
pp. 8109-8121 ◽  
Author(s):  
Ramsingh Kurrey ◽  
Manas Kanti Deb ◽  
Kamlesh Shrivas
Keyword(s):  
Silver Nanoparticles ◽  
Water Samples ◽  
Quaternary Ammonium ◽  
Cationic Surfactants ◽  
Single Drop ◽  
Single Drop Microextraction ◽  
Surface Enhanced ◽  
Infra Red ◽  
Quaternary Ammonium Cationic Surfactants

A novel surface enhanced infra-red spectroscopy (SEIRS) method with silver nanoparticles (AgNPs) assisted by single drop microextraction (SDME) was developed for detection of total mixed quaternary ammonium cationic surfactants (QACS) in water samples.

Limitations of the Phenolphthalein Competition Method for Estimating Cyclodextrin Binding Constants

1995 ◽  
Vol 48 (3) ◽  
pp. 551 ◽  
Author(s):  
JE Gray ◽  
SA Maclean ◽  
VC Reinsborough
Keyword(s):  
Quaternary Ammonium ◽  
Cationic Surfactants ◽  
Binding Constants ◽  
Primary Amines ◽  
Cyclodextrin Complexes ◽  
Heterocyclic Ligands ◽  
Cyclodextrin Inclusion Complexes ◽  
Cyclodextrin Inclusion ◽  
Alkyl Sulfates ◽  
Quaternary Ammonium Cationic Surfactants

The phenolphthalein competitive spectrophotometric technique was used to obtain binding constants for cyclodextrin complexes for a variety of both inclusates and cyclodextrins . The former included alkane-1-sulfonates (C5-C12), alkyl sulfates (C6, C8, C12) and several heterocyclic ligands, and the latter included β-cyclodextrin, dimethyl-β-cyclodextrin and γ- cyclodextrin . The technique was not successful for either α- cyclodextrin or trimethyl -β- cyclodextrin inclusion complexes, or with many primary amines and quaternary ammonium cationic surfactants. However, for many colourless inclusates this method is a simple, convenient, reliable route to cyclodextrin binding constants.

Petroleum quaternary ammonium surfactants mixture synthesized from light naphtha as corrosion inhibitors for carbon steel in 1 m HCl

2013 ◽  
Vol 31 (2) ◽  
pp. 61-72 ◽  
Author(s):  
Houria Hamitouche ◽  
Abdellah Khelifa ◽  
Amel Kouache ◽  
Saâd Moulay
Keyword(s):  
Carbon Steel ◽  
Quaternary Ammonium ◽  
Cationic Surfactants ◽  
Electrochemical Impedance ◽  
Acid Corrosion ◽  
Light Naphtha ◽  
Optimal Value ◽  
Quaternary Ammonium Surfactants ◽  
Microscopy Images ◽  
Quaternary Ammonium Cationic Surfactants

AbstractA quaternary ammonium cationic surfactants mixture was synthesized from light naphtha, petroleum fraction. The mixture was analyzed by Fourier transform infrared spectroscopy and UV/Visible spectroscopy and was evaluated as a corrosion inhibitor for carbon steel in 1 m HCl, by gravimetry, potentiodynamic polarization and electrochemical impedance spectroscopy. The results showed that inhibiting efficiency increased with inhibitor concentration and temperature, and was independent of pH (in the range of 0–4) and immersion time; its optimal value was up to 84% for 560 mg/l at 25°C. Experimental data showed that the cationic surfactants mixture acts as a mixed (anodic and cathodic) inhibitor and conformed to the Langmuir adsorption isotherm. Scanning electron microscopy images revealed the inhibiting capacity of the mixture against carbon steel acid corrosion.

scholarly journals The Interactions between Quaternary Ammonium Cationic Surfactants and Bovine Serum Albumin

2016 ◽  
Vol 32 (12) ◽  
pp. 2951-2960 ◽  
Author(s):  
Hu-Jun XIE ◽  
◽  
Cheng-Cheng LIU ◽  
Qiang SUN ◽  
Qing GU ◽  
...  
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Quaternary Ammonium ◽  
Bovine Serum ◽  
Cationic Surfactants ◽  
Quaternary Ammonium Cationic Surfactants
Sign in / Sign up

Export Citation Format

Share Document