| Issue |
Europhys. Lett.
Volume 76, Number 5, December 2006
|
|
|---|---|---|
| Page(s) | 959 - 964 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2006-10363-6 | |
| Published online | 08 November 2006 | |
Phase transitions in block copolymers resulting in a discontinuous change of the spatial period of mesophases
1
Polymers and Crystals Chair, Physics Department, Lomonosov Moscow State University - Vorobjevy gory, 119992 Moscow, Russia
2
Keldysh Institute of Applied Mathematics - Miusskaya Square 4 125047 Moscow, Russia
3
Department of Polymer Chemistry and Material Science Center University of Groningen - Nijenborgh 4, 9747 AG Groningen, The Netherlands
Corresponding author: kuchanov@polly.phys.msu.ru
Received:
25
August
2006
Accepted:
12
October
2006
The phase behavior of a melt of two-scale multiblock copolymers has been theoretically studied in the framework of the Weak Segregation Limit theory with a two-component order parameter. The existence of a thermodynamically stable mesophase with two scales of the space periodicity has been revealed for a melt of monodisperse nonperiodic heteropolymers. For the first time a discontinuous change with temperature of the spatial period of the mesophases has been predicted.
PACS: 82.35.Jk – Copolymers, phase transitions, structure / 64.10.+h – General theory of equations of state and phase equilibria
© EDP Sciences, 2006
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