| Issue |
Europhys. Lett.
Volume 36, Number 4, November I 1996
|
|
|---|---|---|
| Page(s) | 283 - 288 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00223-5 | |
| Published online | 01 September 2002 | |
Theory of random copolymers near the Lifshitz point
1
Department of Chemistry, CB#3290 Venable Hall, University of
North Carolina - Chapel Hill, NC 27599-3290, USA
2
Unité Mixte de Recherches 167 CNRS-ELF Atochem,
B.P. 108, 95 rue Danton,
92303 Levallois-Perret, France
Received:
22
April
1996
Accepted:
15
September
1996
We study the behavior of random A-B copolymers near the Lifshitz point. In the
one-loop approximation the phase transition between homogeneous and ordered
phases is a fluctuation-induced first-order phase transition. The period L of
the domain structure appearing below the phase transition has unusual
temperature dependence 
or 
, where
τ is the reduced temperature distance from the Lifshitz point. The
exponent (
or 
) depends on the microscopic parameters of the system.
PACS: 64.60.-i – General studies of phase transitions / 36.20.-r – Macromolecules and polymer molecules
© EDP Sciences, 1996
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