Comparison of interaction patterns of a triblock copolymer micelle with zwitterionic vs. cationic surfactant: An excited-state proton transfer dynamics investigation

Pal, Tapas; Sahu, Kalyanasis

doi:10.1016/j.colsurfa.2022.128327

Cited by 4 publications

(13 citation statements)

References 57 publications

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“…For example, l max in water is at 511 nm, while it shifts remarkably to 526 nm in the SB12 micelle, consistent with our earlier observation. 39 However, after adding PDADMAC to SB12 micelles, the deprotonated band undergoes a remarkable blue shift to 508 nm, similar to l max in the aqueous PDADMAC solution (Fig. 2b).…”

Section: Steady-state Spectramentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

“…33,34 The enormous importance of ESPT in chemical and biological systems and their unique photophysical characteristics has received increasing attention in scientific communities. [35][36][37][38][39] Here, we exploit the ESPT process of 8-hydroxypyrene-1,3,6trisulfonic acid (HPTS) to investigate the interaction of a cationic polyelectrolyte, poly(diallyl dimethylammonium chloride) (PDADMAC), with micelles of differently charged surfactants. HPTS is weakly acidic (pK a B 7.2-7.7) in the ground state, but the acidity increases drastically (pKa* B 0.5-1.5) in the excited state, hence serving as a molecular photoacid probe.…”

Section: Introductionmentioning

confidence: 99%

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Exploring cationic polyelectrolyte–micelle interaction via excited-state proton transfer. Signatures of probe transfer

Pal

Sahu

2023

Phys. Chem. Chem. Phys.

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Section: Steady-state Spectramentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring cationic polyelectrolyte–micelle interaction via excited-state proton transfer. Signatures of probe transfer

Pal

Sahu

2023

Phys. Chem. Chem. Phys.

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“…It is demonstrated that, compared with carboxybetaine-type zwitterionic surfactants, sulfobetaine-type zwitterionic surfactants have better compatibility and synergy with other additives because of the internal salt structure, formed by quaternary ammonium salt and acidic sulfonate. In almost all pH ranges, the sulfobetaine-type zwitterionic surfactants do not accept or release protons . Because of the connection between the carbon atom and the sulfur atom on the sulfonic acid group, , the sulfobetaine zwitterionic surfactants are more resistant to the high-salt environment. , For example, EDAS can self-assemble into WLMs, and salinity has little effect on the EDAS solution …”

Section: High-temperature-resistant Ves Fracturing Fluidsmentioning

confidence: 99%

Review on High-Temperature-Resistant Viscoelastic Surfactant Fracturing Fluids: State-of-the-Art and Perspectives

Liu

et al. 2023

Energy Fuels

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A viscoelastic surfactant (VES) fluid is an important part of a water-based fracturing fluid. As oil and gas exploration expands into deep, high-temperature, low-permeability reservoirs, the conventional VES fracturing fluid has shown great limitations. The high-temperature-resistance mechanisms of the high-temperature-resistant VES fracturing fluids in publicly available literature were analyzed from five aspects: single-chain surfactant system, oligomeric surfactant system, counterion effect, blended surfactant system, and nano-enhanced VES system. The friction-reduction performance, sand-carrying performance, gel-breaking performance, and core-damage performance of these systems were summarized. The results show that oligomeric surfactants with a monounsaturated hydrophobic long chain (>C21) are most likely to be used for VES fracturing fluids in high-temperature reservoirs, but the loading of the surfactants is still relatively high (3–5 wt %). By reducing the repulsion among polar headgroups to effectively decrease the area of head groups, or/and penetrating into the nonpolar cores based on hydrophobic interaction to increase the average hydrophobic volume of hydrophobic tails, counterions affect the performance of VESs. The aromatic counterion salts are preferred choices for improving the temperature resistance, friction reduction, and suspended sand performance of VES fluids. The blended surfactant/synthetic polymer systems based on noncovalent interaction improve the temperature resistance of VES fluids and reduce the loading of the surfactants to a certain extent. Based on the “pseudo-cross-linking” of nanomaterials and wormlike micelles, a very small amount of nanomaterials can improve the temperature resistance of VES fluids and reduce the loading of the surfactants. The most essential and effective method to improve the temperature resistance of VES fluids for fracturing is the molecular structure design based on the packing parameter theory. However, the synthesis process or route still needs further optimization to reduce production costs. In addition, given the excellent performance of VES fluids enhanced by nanomaterials, further research should be conducted on the influence mechanism of nanomaterial type and geometric features on the performance of VESs, as well as the potential harmfulness of nanomaterials, to promote the field-scale application of nano-enhanced VES fluids.

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“…Because of the connection between carbon atom and sulfur atom on the sulfonic acid group, sulfobetaine surfactants are not easy to hydrolyze under high temperature and acidic environments (Liu et al, 2021a; Liu et al, 2021b). In addition, in almost all pH ranges, sulfobetaine surfactants do not accept or release protons (Pal & Sahu, 2022; Phukon & Sahu, 2017). They always exist in the form of inner salt and can be used as a zwitterionic surfactant that can resist high concentrations of acid, alkali or salt (Yarveicy & Haghtalab, 2018).…”

Section: Overview Of Sulfobetaine Surfactantsmentioning

confidence: 99%

Progress in research of sulfobetaine surfactants used in tertiary oil recovery

et al. 2022

J Surfact & Detergents

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The synthesis of sulfobetaine surfactants and their application in tertiary oil recovery (TOR) are summarized in this paper. The synthesis of sulfobetaine surfactants was classified into three categories of single hydrophobic chain sulfobetaine surfactants, double hydrophobic chain sulfobetaine surfactants and Gemini sulfobetaine surfactants for review. Their application in TOR was classified into surfactant flooding, microemulsion flooding, surfactant/polymer (SP) flooding and foam flooding for review. The sulfonated betaine surfactants have good temperature resistance and salt tolerance, low critical micelle concentration (cmc) and surface tension corresponding to critical micelle concentration (γcmc), good foaming properties and wettability, low absorption, ultralow interfacial tension of oil/water, and excellent compatibility with other surfactants and polymers. Sulfobetaine surfactants with ethoxyl structures, hydroxyl and unsaturated bonds, and Gemini sulfobetaine surfactants will become an important direction for tertiary oil recovery because they have better interfacial activity in high‐temperature (≥90°C) and high‐salinity (≥104 mg/L) reservoirs. Some problems existing in the synthesis and practical application were also reviewed.

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Comparison of interaction patterns of a triblock copolymer micelle with zwitterionic vs. cationic surfactant: An excited-state proton transfer dynamics investigation

Cited by 4 publications

References 57 publications

Exploring cationic polyelectrolyte–micelle interaction via excited-state proton transfer. Signatures of probe transfer

Exploring cationic polyelectrolyte–micelle interaction via excited-state proton transfer. Signatures of probe transfer

Review on High-Temperature-Resistant Viscoelastic Surfactant Fracturing Fluids: State-of-the-Art and Perspectives

Progress in research of sulfobetaine surfactants used in tertiary oil recovery

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