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CO2-Responsive Wormlike Micelles Based on Pseudo-Tetrameric Surfactant

Authors :
Xia Wei
Xiran He
Dongmei Zhang
Xin Su
Source :
Molecules, Vol 27, Iss 22, p 7922 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Wormlike micelles, which are linear aggregates created by the self-assembly of surfactants, may entangle to form dynamic three-dimensional network-like structures, endowing solutions with considerable macroscopic viscoelasticity. Recently, a pressing need has arisen to research a novel stimuli-responsive worm-like micelle that is efficient and environmentally friendly. CO2 is an inexpensive, abundant, non-toxic, biocompatible, and non-combustible gas, and it is anticipated that CO2 may serve as the trigger for stimuli-responsive worm-like micelles. In this paper, the formation of CO2-switchable pseudo-tetrameric surfactants, which subsequently self-assemble into CO2-switched wormlike micelles, is accomplished using a simple mixing of two commercial reagents, such as stearic acids and cyclen. The rheological characteristics switched by the use of CO2 are cycled between that of a low-viscosity (1.2 mPa·s) fluid and a viscoelastic fluid (worm-like micelles, 3000 mPa·s). This article expands the field of study on stimuli-responsive worm-like micelles.

Details

Language :
English
ISSN :
14203049
Volume :
27
Issue :
22
Database :
Directory of Open Access Journals
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
edsdoj.67f5afc9880f4aab824249e4d20cb118
Document Type :
article
Full Text :
https://doi.org/10.3390/molecules27227922