Gemini Surfactants

doi:10.1002/0471670561.ch12

Surfactants and Interfacial Phenomena 2004

DOI: 10.1002/0471670561.ch12

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Gemini Surfactants

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Cited by 11 publications

References 46 publications

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An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

Akram

Lal

Osama

et al. 2020

J Surfact & Detergents

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In this study, we prepared a novel series of diester-functionalized cationic gemini surfactants (C m-E2O2-C m) containing ethylene oxide as a spacer with varying alkyl chain lengths and characterized by 1 H NMR, FT-IR, elemental analysis, and ESI-MS. The physicochemical properties of the geminis were explored by tensiometry, fluorescence, dye solubilization, and Krafft point. These geminis acquire superior surface activity than the conventional surfactants. Fluorescence spectroscopy analysis affirmed that the micropolarity and aggregation number of micelles diminished with increase in the alkyl chain length. These geminis represent a new group of amphiphiles of considerably high biodegradability, better cleavability, and low toxicity as assessed by BOD test, FT-IR analysis, and HC 50 analysis, respectively. They also showed significant level of antimicrobial activity toward some specified bacterial strains of Gram-positive and Gram-negative by using agar well diffusion method. Furthermore, the thermogravimetric analysis provided information regarding thermal stabilities of the newly synthesized gemini surfactants. Keywords C m-E2O2-C m gemini surfactants Á Physicochemical properties Á Antimicrobial activities Á TGA

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An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

Akram

Lal

Osama

et al. 2020

J Surfact & Detergents

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Synthesis and application of alkyl-substituted disazo yellow dyes for unmodified polypropylene fiber

et al. 2008

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The several disazo dyes having different alkyl substituents were synthesized to dye unmodified polypropylene fiber. The affinity of the dyes onto unmodified polypropylene was increased with the increase of the length of alkyl substituents. Therefore, the heptyl-substituted dye having the longest alkyl group in this experiment showed very high color strength of dyeings with K/S value of over 24 at maximum absorption wavelength. The color fastnesses to washing, rubbing and light were also improved significantly for the longer alkyl substituted dyes, so that the heptyl-substituted dye exhibited a rating of 4~5 for all kinds of fastnesses.

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Synthesis and application of alkyl-substituted high chroma yellow dyes for unmodified polypropylene fiber

et al. 2009

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Gemini Surfactants

Cited by 11 publications

References 46 publications

An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

Synthesis and application of alkyl-substituted disazo yellow dyes for unmodified polypropylene fiber

Synthesis and application of alkyl-substituted high chroma yellow dyes for unmodified polypropylene fiber

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