Volume 53, Number 1, January 2001
|Page(s)||46 - 52|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Mean-field approach to polymeric microemulsions
Japan Chemical Innovation Institute,
Nagoya University Nagoya 464-8601, Japan
2 Yokohama Research Center, Mitsubishi Chemical Corporation Yokohama 227-8502, Japan
3 Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology - Iizuka 820-8502, Japan
Accepted: 20 October 2000
Equilibrium structure of ternary blends of A and B homopolymers and symmetric AB block copolymer is investigated using an extended lattice self-consistent field theory by means of numerical calculations. We demonstrate that bicontinuous polymeric microemulsions result from microphase separation for relatively longer copolymer chain. Detailed free energy analysis revealed that the stability of the lamellar phase is marginal in the corresponding region. For relatively shorter copolymer chain, 3-phase coexistence between the lamellar, A-rich and B-rich phases is observed.
PACS: 64.75.+g – Solubility, segregation, and mixing; phase separation / 82.20.Wt – Computational modeling; simulation / 82.70.Kj – Emulsions and suspensions
© EDP Sciences, 2001
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