Effect of PIBSA-Based Surfactants on the Interfacial Interaction, Rheology, and Stability of Highly Concentrated Water-In-Oil Emulsion

Abstract

An investigation was performed into the effect of surfactants on the interfacial interaction of surfactants, rheological properties, and stability of highly concentrated water-in-oil emulsion (HCE). The surfactants were oligomers of the polyisobutylene succinic anhydride based on different head groups and hydrophobic chain lengths. The FTIR study revealed interaction between surfactant head groups and ammonium nitrate (AN) ions. The interactions were dependent on the polarity of the head group determined by their chemical structure. A certain amount of salt ratio in the head group can improve the interaction between surfactant and AN. It was also demonstrated that the nature of surfactants influences the rheological properties and stability of HCE. The viscoelasticity and yielding were correlated with interfacial interaction characteristics. The results of the increase of storage modulus with time show the increase of the solid-like properties of HCE.

Organic acids under pressure: elastic properties, negative mechanical phenomena and pressure induced phase transitions in the lactic, maleic, succinic and citric acids

“…295,300 The characteristics and mechanical properties of many interesting polymers and materials based on, or related to, succinic acid have long been investigated. [301][302][303][304][305][306][307][308][309][310][311][312][313][314][315][316][317] 2.3.1 Crystal structure. The optimized crystal structure of succinic acid, COOH-CH-CH-COOH, is plotted in Fig.…”

Kinetics of Cyclopentane Hydrate Formation: An Interfacial Rheology Study

“…Recently, the interest in interfacial rheology has risen. Most of the applications are associated with emulsification processes and stability of emulsions and suspensions due to its importance to several industries including petroleum, cosmetics, pharmacy and food production [21][22][23][24][25][26]. Apart from that, some studies have acknowledged that interfacial rheology plays a key role in biological processes [14].…”