1. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
2. National Institute of Standards and Technology, Gaithersburg, Maryland 20899
3. The Dow Chemical Company, Midland, Michigan 48674
4. Dow Benelux BV, Terneuzen, The Netherlands
5. Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands