Polymerizable cationic gemini surfactant

Masahiko Abe; Kazuyuki Tsubone; Takaaki Koike; Koji Tsuchiya; Takahiro Ohkubo; Hideki Sakai

doi:10.1021/la060156y

Polymerizable cationic gemini surfactant

Masahiko Abe, Kazuyuki Tsubone, Takaaki Koike, Koji Tsuchiya, Takahiro Ohkubo, Hideki Sakai

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

Abstract

A polymerizable cationic gemini surfactant, [CH₂=C(CH ₃)COO(CH₂)₁₁N⁺CH₃) ₂CH₂]₂·2Br^-, 1 has been synthesized and its basic interfacial properties were investigated (in water and in the presence of 0.05 M NaBr). For comparison, the properties of monomeric surfactant corresponding to 1, CH₂-C(CH₃)COO(CH ₂)₁₁N⁺(CH₃)₃· Br^-, 2, were also investigated. Parameters studied include cmc (critical micelle concentration), C₂₀ (required to reduce the surface tension of the solvent by 20 mN/m), Γ_cmc (the surface tension at the cmc), Γ_cmc (the maximum surface excess concentration at the air/water interface), A_min (the minimum area per surfacatant molecule at the air/water interface), and cmc/C₂₀ ratio (a measure of the tendency to form micelles relative to adsorb at the air/water interface). For the polymerizable gemini surfactant, 1, the methacryloxy groups at the terminal of each hydrophobic group in a molecule have no contact with the air/water interface in the monolayer, whereas for the corresponding monomeric surfactant, 2, the methacryloxy group contacts at the interface forming a looped configuration like a bolaamphiphile. Polymerized micelles of the gemini surfactant are fairly small monodisperse and spherical particles with a mean diameter of 3 nm.

Original language	English
Pages (from-to)	8293-8297
Number of pages	5
Journal	Langmuir
Volume	22
Issue number	20
DOIs	https://doi.org/10.1021/la060156y
Publication status	Published - Sept 26 2006
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la060156y

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@article{776b11b79475490294467f3829a55d49,

title = "Polymerizable cationic gemini surfactant",

abstract = "A polymerizable cationic gemini surfactant, [CH2=C(CH 3)COO(CH2)11N+CH3) 2CH2]2·2Br-, 1 has been synthesized and its basic interfacial properties were investigated (in water and in the presence of 0.05 M NaBr). For comparison, the properties of monomeric surfactant corresponding to 1, CH2-C(CH3)COO(CH 2)11N+(CH3)3· Br-, 2, were also investigated. Parameters studied include cmc (critical micelle concentration), C20 (required to reduce the surface tension of the solvent by 20 mN/m), Γcmc (the surface tension at the cmc), Γcmc (the maximum surface excess concentration at the air/water interface), Amin (the minimum area per surfacatant molecule at the air/water interface), and cmc/C20 ratio (a measure of the tendency to form micelles relative to adsorb at the air/water interface). For the polymerizable gemini surfactant, 1, the methacryloxy groups at the terminal of each hydrophobic group in a molecule have no contact with the air/water interface in the monolayer, whereas for the corresponding monomeric surfactant, 2, the methacryloxy group contacts at the interface forming a looped configuration like a bolaamphiphile. Polymerized micelles of the gemini surfactant are fairly small monodisperse and spherical particles with a mean diameter of 3 nm.",

author = "Masahiko Abe and Kazuyuki Tsubone and Takaaki Koike and Koji Tsuchiya and Takahiro Ohkubo and Hideki Sakai",

year = "2006",

month = sep,

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doi = "10.1021/la060156y",

language = "English",

volume = "22",

pages = "8293--8297",

journal = "Langmuir",

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publisher = "American Chemical Society",

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}

TY - JOUR

T1 - Polymerizable cationic gemini surfactant

AU - Abe, Masahiko

AU - Tsubone, Kazuyuki

AU - Koike, Takaaki

AU - Tsuchiya, Koji

AU - Ohkubo, Takahiro

AU - Sakai, Hideki

PY - 2006/9/26

Y1 - 2006/9/26

N2 - A polymerizable cationic gemini surfactant, [CH2=C(CH 3)COO(CH2)11N+CH3) 2CH2]2·2Br-, 1 has been synthesized and its basic interfacial properties were investigated (in water and in the presence of 0.05 M NaBr). For comparison, the properties of monomeric surfactant corresponding to 1, CH2-C(CH3)COO(CH 2)11N+(CH3)3· Br-, 2, were also investigated. Parameters studied include cmc (critical micelle concentration), C20 (required to reduce the surface tension of the solvent by 20 mN/m), Γcmc (the surface tension at the cmc), Γcmc (the maximum surface excess concentration at the air/water interface), Amin (the minimum area per surfacatant molecule at the air/water interface), and cmc/C20 ratio (a measure of the tendency to form micelles relative to adsorb at the air/water interface). For the polymerizable gemini surfactant, 1, the methacryloxy groups at the terminal of each hydrophobic group in a molecule have no contact with the air/water interface in the monolayer, whereas for the corresponding monomeric surfactant, 2, the methacryloxy group contacts at the interface forming a looped configuration like a bolaamphiphile. Polymerized micelles of the gemini surfactant are fairly small monodisperse and spherical particles with a mean diameter of 3 nm.

AB - A polymerizable cationic gemini surfactant, [CH2=C(CH 3)COO(CH2)11N+CH3) 2CH2]2·2Br-, 1 has been synthesized and its basic interfacial properties were investigated (in water and in the presence of 0.05 M NaBr). For comparison, the properties of monomeric surfactant corresponding to 1, CH2-C(CH3)COO(CH 2)11N+(CH3)3· Br-, 2, were also investigated. Parameters studied include cmc (critical micelle concentration), C20 (required to reduce the surface tension of the solvent by 20 mN/m), Γcmc (the surface tension at the cmc), Γcmc (the maximum surface excess concentration at the air/water interface), Amin (the minimum area per surfacatant molecule at the air/water interface), and cmc/C20 ratio (a measure of the tendency to form micelles relative to adsorb at the air/water interface). For the polymerizable gemini surfactant, 1, the methacryloxy groups at the terminal of each hydrophobic group in a molecule have no contact with the air/water interface in the monolayer, whereas for the corresponding monomeric surfactant, 2, the methacryloxy group contacts at the interface forming a looped configuration like a bolaamphiphile. Polymerized micelles of the gemini surfactant are fairly small monodisperse and spherical particles with a mean diameter of 3 nm.

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Polymerizable cationic gemini surfactant

Abstract

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