Structural Changes in the Isotropic Phase of the Ternary Surfactant System: Tetradecyldimethylamine Oxide/Benzyl Alcohol/Water

Phase behaviors of Gemini cationic surfactants/n-butanol/water systems

“…4) obtained from SAXS obey the relationship 1 : 1/ √ 3. Comparing the photograph with that reported in the literature [17][18][19][20][21][22][23], it can be confirmed that the anisotropic phase is hexagonal liquid crystal. Sample a 3 is the sample of V region, in photograph B (Fig.…”

“…The number of doublet peaks shows the types of anisotropic liquid crystal, and the height of split indicates the content of liquid crystal. For a same system the splitting value of lamellar liquid crystal is twice that of hexagonal liquid crystal [16][17][18][19].…”

Structural changes in poly(ethyleneimine) modified microemulsion

“…The moderate slope in the conductivity can be related to a weak percolation of charges through the droplets in the L 2 phase; phenomenon which was found to be much stronger for the unmodified system [42]. Moreover, at about 40 wt% of aqueous solution added, a transition to a pseudo-plateau at approximately 600 µS/cm is observed, which can be related to the transition from an aqueous system of dispersed micellar aggregates to a bicontinuous structure [39,57]. A further increase of the aqueous content (>60 wt%) leads to a second steeper jump in the conductivity, indicating an evident structural change in the system: one goes from a bicontinuous structure to an oil-in-water microemulsion [39,58,59].…”

Interfacial Rheology Measured with a Spinning Drop Interfacial Rheometer: Particularities in More Realistic Surfactant–Oil–Water Systems Close to Optimum Formulation at HLDN = 0

“…This means that the interface is predominantly elastic and that its viscous modulus is small. The phase angle is smaller in the presence of sec‐butanol, which is surprising because short‐chain alcohols are known to enhance the fluidity of surface layers (Gradzielski et al, 1998). It has been previously discussed that the interfacial rheology parameters (phase angle mainly) are affected by lens formation around the droplet at optimum formulation (Marquez et al, 2018b, 2019a).…”