N-Arylmethyl-7-azabicyclo[2.2.1]heptane (I) derivatives have been synthesized by deprotection of N-protected, N-(arylmethyl)cyclohex-3-enamines, bromination of the resulting secondary cyclohex-3-enamines, followed by base-promoted cyclization (route a), or by bromination of N-protected, N-(arylm...
Interaction of biopolymer bovine serum albumin (BSA) with a cationic surfactant cetylpyridinium chloride (CPC) has been performed using the conductometric technique in water as well as in the presence of electrolytes at various temperatures. The three critical micelle concentrations (c⁎1, c⁎2 an...
Cetylpyridinium chloride (CPC) is an antimicrobial agent used in many personal care products, with subsequent release into the environment. Since CPC is found at low concentrations in river and municipal wastewater, its influence on wildlife is of concern. Therefore, in this study, we used flow ...
Dye–surfactant systems known to exhibit two critical micelle concentrations (cmcs) are not many and the behavior of such systems in the mixed form has not been fully explored and reported. Phenol red (PR) and cetylpyridinium chloride (CPC) form one such dye–surfactant pair and its mixtures are...
The micellar behavior of cetylpyridinium chloride (CPC) in water and polar non-aqueous solvents has been investigated in the temperature range of 298.15–323.15 K using conductivity methods. The specific conductivity versus concentration plot determines the micellization parameters using critica...
UV-C assisted disinfection processes are among the well-known tertiary processes for water reuse, wastewater reclamation and domestic water disinfection. However, treated wastewaters normally contain several organic compounds and pollutants that can be partially degraded under UV-C irradiation t...
Hepatitis B virus (HBV) infection is a major risk factor for chronic liver disease, cirrhosis, and hepatocellular carcinoma (HCC) worldwide. While multiple hepatitis B drugs have been developed, build up of drug resistance during treatment or weak efficacies observed in some cases have limited t...
Supramolecular complexations of cetylpyridinium chloride with three comparable cavity dimension based crown ethers, namely, dibenzo-18-crown-6, 18-crown-6 and dicyclohexano-18-crown-6 have been explored and adequately compared in acetonitrile with the help of conductivity in a series of temperat...
With the objective of developing a new environmental friendly inhibitor formulation for corrosion of mild steel, Cetylpryidinium chloride (CPC) was chosen as inhibitor in 3.5%NaCl environment. Zn2+ was chosen as a synergist. The inhibition efficiency (IE) of various concentrations of a CPC-Zn2+ ...
Biodegradability studies for the cationic surfactant cetylpyridinium chloride (CPC) are hampered by inhibitory effects on inoculum at prescribed test concentrations (10–20 mg organic carbon/L). In this study, we used 14C labeled CPC in the 28 d Headspace Test (OECD 310) and demonstrated that CP...
The problem of gas absorption into a falling film reactor was studied in the case of an instantaneous reaction. A diffusion–convection–reaction model was developed taking momentum, mass and heat transfer effects into account. The performance of the model was examined for sulphonation of tridec...
The method of lines with adaptive mesh was used to solve a falling film reactor model for the industrial sulfonation of tridecylbenzene. A model composed by three partial differential equations, three ordinary differential equations and several arithmetic ones was proposed. Using a discretizatio...
With sodium dodecylbenzene sulfonate (SDBS) solutions in N,N-Dimethylformamide (DMF) as sheath fluids to surround the core polymer solutions, a series of polyacrylonitrile (PAN) nanofibers with fine diameters, narrow diameter distributions, smooth surfaces and uniform structures have been succes...
Dodecylbenzene sulfonic acid (DBSA) doped poly(o-toluidine) (POT) was synthesized by oxidative polymerization technique. The optical, structural, morphological, thermal and electrical properties of the POT-DBSA have been investigated. It was found that conducting emeraldine salt of POT-DBSA is s...
Dispersion of Fe3O4–water suspension is enhanced with appropriate decision of solution pH and the amount of dispersant, sodium dodecylbenzene sulphonate. Active adsorption of dispersant onto Fe3O4 takes place only at pH levels below the isoelectric point. The median diameter is reduced with an ...
Soluble polyaniline (PANI) doped with dodecylbenzene sulfonic acid (DBSA) was synthesized by chemical oxidation method and was cast on glass using homemade spray, a simple technology used for coating thin film in order to replace other costly complicated techniques. The PANI–DBSA was characteri...
DFT calculations were performed for the simulation of the intercalations of Zn2Al-layered double hydroxide and Zn-layered hydroxide salts with dodecylsulfate and dodecylbenzene sulfonate. A structural and energetic analyses of the exfoliation processes were computed and compared with Perdew-Burk...
The present work aims to ascertain the mechanisms of surfactant (dodecylbenzene sulfonate; DBS) effects on the aggregation behaviors of TiO2 nanoparticles (TiO2-NPs) in natural water samples. Aggregation experiments were conducted at a TiO2-NPs concentration of 10 mg/L in deionized water and in ...
Potentiodynamic polymerization of polypyrrole/dodecylbenzene sulfonate (PPy/DBS) was carried out in aqueous medium. The polymerization process and the morphology of the film generated were found to be influenced by the NaDBS concentration in the synthesis solution. Voltammograms obtained during ...
AlCl3-based ionic liquids (ILs) supported on silica and MCM-41 have been used for disproportionation and dealkylation of dodecylbenzene (DDB) at low reaction temperature. AlCl3-based ionic liquids supported on MCM-41 were highly active for the conversion of DDB. Up to 55 mol% conversion and sele...
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