Numéro |
J. Phys. II France
Volume 3, Numéro 2, February 1993
|
|
---|---|---|
Page(s) | 255 - 258 | |
DOI | https://doi.org/10.1051/jp2:1993127 |
DOI: 10.1051/jp2:1993127
J. Phys. II France 3 (1993) 255-258
1 Institute of Physical Chemistry, Dept. of Chemistry, Univ. of Basel, CH-4056 Basel, Switzerland
2 Institute of Polymer Research, Chemistry Department, Univ. of Waterloo, Waterloo, Ontario, Canada N2L 3G1
61.40K - 82.70 - 82.60
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 255-258
A conductometric analysis of mesogel formation by ABA block copolymers in w/o microemulsions
Hans-Friedrich Eicke1, Mario Gauthier2 and Holger Hammerich11 Institute of Physical Chemistry, Dept. of Chemistry, Univ. of Basel, CH-4056 Basel, Switzerland
2 Institute of Polymer Research, Chemistry Department, Univ. of Waterloo, Waterloo, Ontario, Canada N2L 3G1
(Received 5 October 1992, accepted in final form 26 October 1992)
Abstract
A straightforward thermodynamic model is suggested to describe the (conductometrically measured) variation of the percolation
temperature
of a w/o microemulsion (H
2O/AOT/isooctane) as a function of the initial concentration ratio
(R=P0/D0) of ABA triblock copolymers (b-POE-b-PI-b-POE) and nanodroplets. Two copolymer concentration ranges are predicted, i.e.
for
and
for
which are compatible with our experiments.
61.40K - 82.70 - 82.60
© Les Editions de Physique 1993