Synthesis and monolayer film of a series of new twin-tailed gemini cationic surfactants at the air/water interface

• Authors: Zhi Chen , Yujun Feng , Dongliang Zhou , Puxin Zhu , Dacheng Wu
• Languages of publication: EN

Abstracts

EN

A series of new dimeric surfactants, twin-tailed gemini surfactants, 2(12)-s-2(12), were successfully prepared and characterized, and their monolayer films investigated by the measurement of surface pressure-area (π-A) and surface pressure-time (π-t) isotherms at the air/water interface by a Langmuir film balance. Compared to their monomeric counterparts, their collapse pressure (γcollapse) is smaller, whilst all the molecular area parameters are larger. The limited area (Alimited) and the initial area (Ainitial) of these twin-tailed gemini surfactants change with increasing spacer length s, and the surface pressure decreases with increasing time. It was also found that the higher the initial surface pressure, the larger the attenuation. [...]

Keywords

EN

Synthesis; Monolayer; LB films; Twin-tailed gemini surfactant; Isotherms

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2008
• Volume: 6
• Issue: 3
• Pages: 477-481

Dates

published

1 - 9 - 2008

online

11 - 8 - 2008

Contributors

author

Zhi Chen

author

Yujun Feng

• Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, No. 9, Section 4, Renmin South Avenue, Chengdu, 610041, Sichuan, P. R. China

author

Dongliang Zhou

• Textile Institute, Sichuan University, Chengdu, 610065, P. R. China

author

Puxin Zhu

• Textile Institute, Sichuan University, Chengdu, 610065, P. R. China

author

Dacheng Wu

• Textile Institute, Sichuan University, Chengdu, 610065, P. R. China

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Identifiers

DOI

10.2478/s11532-008-0031-6