Thermodynamics of micellization for partially fluorinated cationic gemini surfactants and related single–chain surfactants in aqueous solution

Li, Yajuan; Li, Peixun; Wang, Jinben; Wang, Yilin; Yan, Haike; Dong, Chu Chuan; Thomas, Robert K.

doi:10.1016/j.jcis.2005.01.108

Cited by 26 publications

(17 citation statements)

References 30 publications

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“…In the present work, the concentration was expressed as a ratio of CMC. The CMC of fluorinated gemini surfactant C F 5 C 10 -C 6 -C 10 C F 5 was 0.060 mM, determined in our previous report [21]. Therefore, the concentration of the surfactant solution can be represented as ranging from 0.05 to 16.7 CMC.…”

Section: Surfactant Adsorptionmentioning

confidence: 79%

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Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface

Song

Wang

et al. 2006

Journal of Colloid and Interface Science

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Section: Surfactant Adsorptionmentioning

confidence: 79%

“…The partially fluorinated gemini surfactant C F 5 C 10 -C 6 -C 10 C F 5 was synthesized according to the previous work [21]. The composition of the partially fluorinated gemini surfactant was confirmed by NMR and MS.…”

Section: Methodsmentioning

confidence: 99%

Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface

Song

Wang

et al. 2006

Journal of Colloid and Interface Science

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“…But as polar polymer PVP concentration increases in the polymer mixtures, the electrostatic interactions between oppositely charged polar groups become prominent which favor the process of micellization and comparatively less energy is required for micelle formation resulting in small DH o m values for higher PVP concentration. Moreover, due to polar nature of PVP, it acts as hydrogen bond breaker for the three dimensional structure of water and hence, the decrease in the DS o m values has been observed as the concentration of PVP in polymer mixture is increased [26][27][28].…”

Section: Thermodynamic Parameters Of Micellization Of Sds In Aqueous mentioning

confidence: 99%

Interaction Study of Anionic Surfactant with Aqueous Non‐Ionic Polymers from Conductivity, Density and Speed of Sound Measurements

Chauhan

Singh

Sharma

et al. 2014

J Surfact & Detergents

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In the present study, we have investigated in detail the interactions of the anionic surfactant sodium dodecyl sulfate (SDS) with aqueous polyethylene glycol (PEG), polyvinyl pyrrolidone (PVP) and various PEG ? PVP mixtures at 293.15, 303.15 and 313.15 K by applying conductivity, density and speed of sound techniques. From experimentally measured data, the critical micelle concentration (CMC) values, standard free energy of micellization (DG m o ), standard enthalpy of micellization (DH m o ), standard entropy of micellization (DS m o ), isentropic compressibilities (j s ), apparent molar volumes (/ v ) and apparent molar isentropic compressions (/ k ) of SDS in aqueous polymer mixtures have been calculated. The nature of the process of micellization has been evidenced from the magnitude of DG m o , DH m o and DS m o values. The trends of variations obtained in the various parameters have been explained in terms of the electrostatic as well as hydrophobic interactions pertaining in SDS-PEG/PVP-water systems.

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“…The iceberg structure may destroy and hydrogen-bond interaction decreases in continuous phase. [32][33][34] These lead to the increase of the entropy ( Figure 6). With the increase of amino acid concentration and total molecule number, the system's entropy which goes up though amino acid can promote SDS micellization.…”

Section: Effects Of Amino Acid On Thermodynamic Functions Of Sds Micementioning

confidence: 99%

Effects of Aspartic Acid and Lysine on Thermodynamic Functions of SDS Micellization

Liu

2010

Chin. J. Chem.

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Aspartic acid and lysine can promote SDS micellization. The critical micellar concentration of SDS decreases with amino acid concentration, but first does and then increases with temperature. In SDS micellization, the change of standard Gibbs free energy is negative in SDS/H 2 O system with or without amino acid. With the increase of amino acid concentration, the changes of mole standard Gibbs free energy and enthalpy decrease, but the change of the system's entropy increases. The effect of lysine is more than that of aspartic acid on the thermodynamic functions.

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Thermodynamics of micellization for partially fluorinated cationic gemini surfactants and related single–chain surfactants in aqueous solution

Cited by 26 publications

References 30 publications

Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface

Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface

Interaction Study of Anionic Surfactant with Aqueous Non‐Ionic Polymers from Conductivity, Density and Speed of Sound Measurements

Effects of Aspartic Acid and Lysine on Thermodynamic Functions of SDS Micellization

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