Rheological and Fluorescence Investigation of Interaction between Hexadecyltrimethylammonium Bromide and Methylcellulose in the Presence of Hydrophobic Salts

Abstract

The interaction of hexadecyltrimethylammonium bromide (HTAB) and methylcellulose (MC) has been investigated in aqueous medium employing rheological and fluorescence probing experiments. The associated physicochemical properties of the polymer-surfactant mixed system such as critical aggregation concentration (cac), critical micelle concentration (cmc), micellar aggregation number (N), micellar micropolarity index (pyrene I(1)/I(3) values), and viscosity curve are studied as a function of HTAB concentration. The effects of sodium benzoate (NaBz), sodium hexanoate (NaHx) and sodium chloride (NaCl) on the behavior of the polymer-surfactant solution have been followed systematically. The obtained experimental findings unfold significant information with respect to the effects of the salts on the solution behavior of the mixed system in addition to gelation characteristics.

CO2-induced smart viscoelastic fluids based on mixtures of sodium erucate and triethylamine

“…At this moment, the solutions can capture bubbles, and withstand its own weight in a long timescale when tripped upside down. This ''gel-like'' behavior is similar to that found in gemini surfactants [43] or other ultra-long surfactant [44,45] solutions, or hexadecyltrimethylammonium bromidemethylcellulose system [46]. Nonetheless, they are not true gels but simply resulted from the abnormal long-time relaxation by reptation of the ultra-long chains [44,45].…”

Transparent sunlight conversion film based on carboxymethyl cellulose and carbon dots

“…Therefore, more and more attention is paid to search for alternatives to replace the non-renewable sources (Khan, Huq, Khan, Riedl, & Lacroix, 2014). And biodegradable natural polymer including cellulose (Dar, Garai, Das, & Ghosh, 2010;Burman, Ghosh, &Das, 2014;Ghosh & Moulik, 1998;Nag, Sadhukhan & Chattoraj 1988;Qi, Chang, & Zhang, 2009), starch (Dintcheva, La Mantia, & Arrigo, 2014), and chitin (Srinivasa & Tharanathan, 2007) is provided a broader development space. Carboxymethyl cellulose (CMC), the most widely used cellulose derivative, composed of ␤-d-glucose and ␤-d-glucopyranosyl-2-O-(carboxymethyl)-monosodium salt connected via ␤-(1,4-glycosidic) bonds ( Fig.…”

Study of Cationic and Nonionic Mixed Micelles with NaBr and 3,5-Cl₂C₆H₃CO₂Na by Use of Probe Nucleophilic Reaction of Piperidine with Ionized Phenyl Salicylate

“…A large number of experiments involving mixture of substances 0.10 M Pp, 0.2 mM PhSH, 0.03 M NaOH and various concentrations of MX 3,5-Cl 2 C 6 H 3 CO 2 Na were subjected to spectrophotometric studies to monitor the disappearance of PhS at 370 nm and 35 in the presence of pure HDABr and mixed HDABr-C 16 E 20 . The details and the outcome of the investigation were described elsewhere 17 .…”

“…It has been known for nearly three decades that the counterionic salts affect the physicochemical properties of mixed aqueous ionic-nonionic surfactants 20 22 . Effects of the concentrations of moderately hydrophobic counterions on the structural features of mixed aqueous ionic-nonionic surfactants have been reported rarely, although such systems are very important industrially as well as technologically 20 . The effects of sodium benzoate NaBz , sodium hexanoate NaHx and NaCl on the associated physicochemical properties of polymer-cationic surfactant mixed system have been studied and the qualitative interpretation of the findings is given in detail 20, 23 25 .…”