Electronic Resource
Springer
Il nuovo cimento della Società Italiana di Fisica
16 (1994), S. 873-877
ISSN:
0392-6737
Keywords:
Physical chemistry of solutions of biological macromolecules
;
Order-disorder and statistical mechanics of model systems
;
Multicritical points
;
Macromolecules and polymer molecules: Constitution (chains and sequences)
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary A two-letter random copolymer with attraction between similar monomers and repulsion between different ones is investigated using the replica method. This type of interactions favors microphase separation (MPS) in a compact state of a polymer or in a melt. Frustrations between interactions and polymeric bonds may lead to freezing transition in a phase where only a few conformations dominate and replica symmetry is broken. Our analysis reveals that stiff polymers have a frozen phase and do not undergo transition to a phase with microdomain structure. In flexible polymers the microphase transition may occur before freezing. A complete phase diagram showing the interplay between the two phase transitions is constructed for the two-letter random copolymer.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02456737
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