Description: Sphere to cylinder transition in a single phase microemulsion system : a theoretical investigation

This title appears in the Scientific Report : 2001

Sphere to cylinder transition in a single phase microemulsion system : a theoretical investigation

The sphere to cylinder transition in a one-phase droplet microemulsion system is studied theoretically. Within the framework of the curvature energy model by Helfrich, it was already shown by Safran [J. Phys. (France) Lett. 45, L-69 (1984)] that for a certain range of the curvature parameters (rigid...

Personal Name(s):	Blokhuis, E. M.
	Sager, W. F. C.
Contributing Institute:	Weiche Materie; IFF-WM
Published in:	The @journal of chemical physics, 115 (2001) S. S 1073 - 1085
Imprint:	Melville, NY American Institute of Physics 2001
Physical Description:	S 1073 - 1085
DOI:	10.1063/1.1380428
Document Type:	Journal Article
Research Program:	Polymere, Membranen und komplexe Flüssigkeiten
Series Title:	Journal of Chemical Physics 115
Subject (ZB):	J
Link:	OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1063/1.1380428 in citations.
Please use the identifier: http://hdl.handle.net/2128/1612 in citations.

The sphere to cylinder transition in a one-phase droplet microemulsion system is studied theoretically. Within the framework of the curvature energy model by Helfrich, it was already shown by Safran [J. Phys. (France) Lett. 45, L-69 (1984)] that for a certain range of the curvature parameters (rigidity constants and spontaneous curvature), a transition occurs from spherical droplets to infinitely long cylinders through a region where both spheres and cylinders are present. Our aim is to further investigate this region in a quantitative way by including-in addition to curvature energy-translation entropy, cylinder length polydispersity, and radial polydispersity. In this way we are able to obtain structural information on the spheres and cylinders formed, their respective volume fractions, and polydispersity, and provide a more detailed comparison with experimental results. (C) 2001 American Institute of Physics.