Densities, Viscosities, Surface Tensions, and Speeds of Sound of Aqueous Solutions of Piperidine + Pyrrolidine + Water

2007 ◽  
Vol 52 (5) ◽  
pp. 1996-1999 ◽  
Author(s):  
Diego Gómez-Díaz ◽  
José M. Navaza ◽  
Begoña Sanjurjo
Keyword(s):  
Aqueous Solutions ◽  
Surface Tensions ◽  
Speeds Of Sound

Surface tensions, densities, and speeds of sound for aqueous solutions of lauryl ether ethoxylates

2013 ◽  
Vol 356 ◽  
pp. 193-200 ◽  
Author(s):  
José Luis López-Cervantes ◽  
Jesús Gracia-Fadrique ◽  
Encina Calvo ◽  
Alfredo Amigo
Keyword(s):  
Aqueous Solutions ◽  
Surface Tensions ◽  
Speeds Of Sound ◽  
Lauryl Ether

Preparation and Properties of Amide Surfactants

2012 ◽  
Vol 550-553 ◽  
pp. 99-102
Author(s):  
Bao Cai Xu ◽  
Gui Ju Zhang ◽  
Yun Xia Li ◽  
Lu Cui
Keyword(s):  
Surface Tension ◽  
Critical Micelle Concentration ◽  
Aqueous Solutions ◽  
Surface Activity ◽  
Surface Tensions ◽  
Equilibrium Surface ◽  
Minimum Surface Tension ◽  
Dilute Aqueous Solutions ◽  
Lipophilic Groups ◽  
Long Chain

Amide surfactants have modified structures with lipophilic groups connecting hydrophilic groups through amido bond. The preparation of three families of amide surfactants including long chain N-acyl sarcosinates, amidopropyl dimethyl hydroxypropyl sulfobetaines and lauryl amidopropyl trimethyl ammoniums were discussed. The study of the surface activity of these compounds by measuring the equilibrium surface tensions of their dilute aqueous solutions were described. The minimum surface tension and the critical micelle concentration values of these compounds are given.

Dynamic and equilibrium surface tensions of surfactin aqueous solutions

2004 ◽  
Vol 7 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Hary Razafindralambo ◽  
Philippe Thonart ◽  
Michel Paquox
Keyword(s):  
Aqueous Solutions ◽  
Surface Tensions ◽  
Equilibrium Surface
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