Gemini (dimeric) surfactants |
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| Authors: | B S Sekhon |
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| Institution: | (1) Department of Biochemistry and Chemistry, Punjab Agricultural University, 141 004 Ludhiana, India |
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| Abstract: | A gemini surfactant (GS) consists of two conventional surfactant molecules chemically bonded together by a spacer. The two
terminal hydrocarbon tails can be short or long; the two polar head groups can be cationic, anionic or nonionic; the spacer
can be short or long, flexible or rigid. The GS need not be symmetrically disposed about the center of the spacer. GS can
self-assemble at much lower concentrations and are superior in surface activity as compared to conventional surfactants. GS
are very attractive for catalysis and adsorption applications, new synthetic vectors for gene transfection, analytical separations,
solubilization processes, nanoscale technology, biotechnology, enhanced oil recovery and as paint additives. |
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| Keywords: | Gemini surfactants micelle |
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