1. Open Access Kent State
  2. Confinement Effects Induced By a Solubilized Polymer on the Micellar Nematic-Lamellar Transition
Author(s)
Abstract

We studied the effect of polyethylene-oxide (PEO, molecular weight from 10(5) to 4 x 10(6)) dissolved in the micellar nematic (N) and lamellar (L) phases of the surfactant system cesium perfluoro-octanoate (CsPFO)/water by microscopy and calorimetry. Replacement of water by PEO suppresses the lamellar phase above a critical concentration (w(c)) which depends on the molecular weight of the polymer by a power law. In a limited range below w(c) a reentrant nematic is observed. The N-L transitions become less sharp with increasing concentration. The observed effects are due to the disruption of the lamellar order by the polymer.
Format
Article
Identifier(s)
10.1103/PhysRevLett.68.3436
Publication Date
1992-06-08
Publication Title
Physical Review Letters
Volume
68
Issue
23
First Page
3436
Last Page
3439
Keywords
Subject
Community
Department of Physics
Comments

Copyright 1992 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevLett.68.3436.
Permalink https://oaks.kent.edu/phypubs/21
Kumar, S., Kuzma, M., Wedler, W., Saupe, A., & Shin, S.-T. (1992). Confinement Effects Induced By a Solubilized Polymer on the Micellar Nematic-Lamellar Transition (1–). Physical Review Letters. https://doi.org/10.1103/PhysRevLett.68.3436
Kumar, Satyendra, M. Kuzma, W. Wedler, A. Saupe, and Sung-Tae Shin. 1992. “Confinement Effects Induced By a Solubilized Polymer on the Micellar Nematic-Lamellar Transition”. Physical Review Letters. https://doi.org/10.1103/PhysRevLett.68.3436.
Kumar, Satyendra, et al. Confinement Effects Induced By a Solubilized Polymer on the Micellar Nematic-Lamellar Transition. Physical Review Letters, 8 June 1992, https://doi.org/10.1103/PhysRevLett.68.3436.