Effect of aminoacids on the critical micellization concentration of different surfactants

2008 ◽  
Vol 70 (5) ◽  
pp. 666-668 ◽  
Author(s):  
N. G. Arutyunyan ◽  
L. R. Arutyunyan ◽  
V. V. Grigoryan ◽  
R. S. Arutyunyan
Keyword(s):  
Critical Micellization Concentration

scholarly journals Synthesis, Hydrophilicity and Micellization of Coil–Brush Polystyrene-b-(polyglycidol-g-polyglycidol) Copolymer—Comparison with Linear Polystyrene-b-Polyglycidol

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 253
Author(s):  
Mariusz Gadzinowski ◽  
Maciej Kasprów ◽  
Teresa Basinska ◽  
Stanislaw Slomkowski ◽  
Łukasz Otulakowski ◽  
...  
Keyword(s):  
Contact Angle ◽  
Self Assembly ◽  
Original Method ◽  
Critical Micellization Concentration ◽  
Water Contact ◽  
1H And 13C Nmr ◽  
Similar Composition ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Static Conditions

In this paper, an original method of synthesis of coil–brush amphiphilic polystyrene-b-(polyglycidol-g-polyglycidol) (PS-b-(PGL-g-PGL)) block copolymers was developed. The hypothesis that their hydrophilicity and micellization can be controlled by polyglycidol blocks architecture was verified. The research enabled comparison of behavior in water of PS-b-PGL copolymers and block–brush copolymers PS-b-(PGL-g-PGL) with similar composition. The coil–brush copolymers were composed of PS-b-PGL linear core with average DPn of polystyrene 29 and 13 of polyglycidol blocks. The DPn of polyglycidol side blocks of coil–b–brush copolymers were 2, 7, and 11, respectively. The copolymers were characterized by 1H and 13C NMR, GPC, and FTIR methods. The hydrophilicity of films from the linear and coil–brush copolymers was determined by water contact angle measurements in static conditions. The behavior of coil–brush copolymers in water and their critical micellization concentration (CMC) were determined by UV-VIS using 1,6-diphenylhexa-1,3,5-trien (DPH) as marker and by DLS. The CMC values for brush copolymers were much higher than for linear species with similar PGL content. The results of the copolymer film wettability and the copolymer self-assembly studies were related to fraction of hydrophilic polyglycidol. The CMC for both types of polymers increased exponentially with increasing content of polyglycidol.

Dependency of Critical Micellization Concentration of an Anionic Surfactant on Temperature and Potassium Chloride Salt

2014 ◽  
Vol 32 (16) ◽  
pp. 1913-1920 ◽  
Author(s):  
M. A. Ahmadi ◽  
S. R. Shadizadeh ◽  
Z. Salari
Keyword(s):  
Potassium Chloride ◽  
Anionic Surfactant ◽  
Critical Micellization Concentration ◽  
Chloride Salt

Thermodynamic study of sodium decyl sulfate solutions in the region the second critical micellization concentration: 1. Volumetric and heat capacity properties

2009 ◽  
Vol 71 (6) ◽  
pp. 784-792 ◽  
Author(s):  
V. S. Kuznetsov ◽  
N. V. Usol’tseva ◽  
V. P. Zherdev ◽  
V. V. Bykova
Keyword(s):  
Heat Capacity ◽  
Critical Micellization Concentration ◽  
Thermodynamic Study ◽  
Sulfate Solutions ◽  
Sodium Decyl Sulfate
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