Interactions of Cationic Gemini Surfactants with Hydrophobically Modified Poly(acrylamides) Studied by Fluorescence and Microcalorimetry

2005 ◽  
Vol 109 (26) ◽  
pp. 12850-12855 ◽  
Author(s):  
Xiaoyong Wang ◽  
Yajuan Li ◽  
Jinben Wang ◽  
Yilin Wang ◽  
Jianping Ye ◽  
...  
Keyword(s):  
Gemini Surfactants ◽  
Hydrophobically Modified ◽  
Cationic Gemini Surfactants

Mixing Behavior of Anionic Hydrotropes with Cationic Gemini Surfactants

2010 ◽  
Vol 55 (11) ◽  
pp. 4775-4779 ◽  
Author(s):  
Iqrar Ahmad Khan ◽  
Ahmad Jahan Khanam ◽  
Ziya Ahmad Khan ◽  
Kabir-ud-Din
Keyword(s):  
Gemini Surfactants ◽  
Cationic Gemini Surfactants ◽  
Mixing Behavior

Surface Tension and Aggregation Properties of Novel Cationic Gemini Surfactants with Diethylammonium Headgroups and a Diamido Spacer

Langmuir ◽  
2012 ◽  
Vol 28 (33) ◽  
pp. 11979-11987 ◽  
Author(s):  
Qi Zhang ◽  
Zhinong Gao ◽  
Feng Xu ◽  
Shuxin Tai ◽  
Xueguo Liu ◽  
...  
Keyword(s):  
Surface Tension ◽  
Gemini Surfactants ◽  
Cationic Gemini Surfactants

Morphological Changes of Cationic Gemini Surfactants 14-s-14 (s=4,5,6) in the Presence of Additives

2012 ◽  
Vol 41 (7) ◽  
pp. 1133-1143 ◽  
Author(s):  
Umme S. Siddiqui ◽  
Farah Khan ◽  
Iqrar A. Khan ◽  
Kabir-ud-Din
Keyword(s):  
Gemini Surfactants ◽  
Morphological Changes ◽  
Cationic Gemini Surfactants

Synthesis, Characterization and Solution Properties of Novel Cationic Ester-Based Gemini Surfactants

2019 ◽  
Vol 233 (5) ◽  
pp. 707-720 ◽  
Author(s):  
Manorama Panda ◽  
Nazish Fatma ◽  
Mohammad Kamil
Keyword(s):  
Gemini Surfactants ◽  
Alkyl Chain ◽  
Solution Properties ◽  
H Nmr ◽  
Surfactant Solutions ◽  
Cationic Gemini Surfactants ◽  
Ft Ir ◽  
M 12 ◽  
Dimeric Surfactant ◽  
Ft Ir Spectroscopy

Abstract The present investigation involves the synthesis of a series of novel green ethylene oxide-linked diester-functionalized cationic gemini surfactants 2,2′-[(oxybis(ethane-1,2-diyl))bis(oxy)]bis(N-alkyl-N,N-dimethyl-2-oxoethanaminium) dichloride (Cm-DEG-Cm; m = 12, 14, 16). These compounds were characterized by 1H-NMR, MS-ESI (+), FT-IR spectroscopy and elemental analysis; their solution properties were evaluated by surface tension and rheology measurements. The dimeric surfactant, Cm-DEG-Cm, possesses improved physicochemical properties as compared to its monomeric counterpart. Much lower critical micelle concentration (cmc) makes the cationic gemini surfactants more useful for the biomedical, pharmaceutical, industrial and academic sectors. Longer the alkyl chain of surfactants lower are the cmc values, the order is C16-DEG-C16 < C14-DEG-C14 < C12-DEG-C12. For all the three synthesized gemini surfactants no cloud point was noticed in between the temperatures 0 °C to 100 °C at the concentrations 0.002 mM, 0.02 mM and 0.2 mM of the aqueous surfactant solutions which is a beneficial factor for the use of these amphiphiles in various areas of application.

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