Kinetics of pressure induced structural changes in super- or near-critical CO2-microemulsions

Alexander Müller; Yvonne Pütz; Roland Oberhoffer; Nils Becker; Reinhard Strey; Albrecht Wiedenmann; Thomas Sottmann

doi:10.1039/C3CP53790K

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Kinetics of pressure induced structural changes in super- or near-critical CO₂-microemulsions†

Alexander Müller,^a Yvonne Pütz,^a Roland Oberhoffer,^a Nils Becker,^a Reinhard Strey,^a Albrecht Wiedenmann^b and Thomas Sottmann*^c

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Cologne, Luxemburger Straße 116, 50939 Cologne, Germany

^b Institut Laue-Langevin, 71 Avenue des Martyrs, F-38000 Grenoble, France

^c Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
E-mail: thomas.sottmann@ipc.uni-stuttgart.de
Tel: +49 (0)711685 64494

Abstract

CO₂-microemulsions show strong pressure dependent properties. Using time-resolved SANS to investigate the kinetics of structural changes upon periodic pressure jumps of adjustable amplitude, we found that the compression-induced formation of cylinders occurs on a timescale of one second, whereas the expansion-induced disintegration into CO₂ swollen spherical micelles is much faster.

Download options Please wait...

Supplementary files

Supplementary information PDF (242K)

Article information

DOI: https://doi.org/10.1039/C3CP53790K
Article type: Communication
Submitted: 05 Sep 2013
Accepted: 25 Jun 2014
First published: 01 Jul 2014

Download Citation

Phys. Chem. Chem. Phys., 2014,16, 18092-18097

Permissions

Request permissions

Kinetics of pressure induced structural changes in super- or near-critical CO₂-microemulsions

A. Müller, Y. Pütz, R. Oberhoffer, N. Becker, R. Strey, A. Wiedenmann and T. Sottmann, Phys. Chem. Chem. Phys., 2014, 16, 18092 DOI: 10.1039/C3CP53790K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Physical Chemistry Chemical Physics