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Molecular Recognition in Solutions of Rod‐Like Copolymers with Two Different Sequences
Author(s) -
Lazutin Alexei A.,
Berezkin Anatoly V.
Publication year - 2009
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/mats.200900003
Subject(s) - mesophase , molecule , sequence (biology) , copolymer , materials science , phase (matter) , crystallography , chemistry , thermodynamics , organic chemistry , physics , polymer , composite material , biochemistry
Segregation in a solution of rigid copolymeric molecules with two different sequences leading to co‐existence of two smectic mesophases has been studied. Thermodynamic characteristics of these mesophases and their equilibrium compositions were found in the frame of two discrete models. It was shown that the degree of ordering in the mesophase depends on the sequence of units in the identical molecules forming this mesophase. The concentration of “mismatched” molecules in the mesophase (the purity of mesophase) is determined both by the composition and the sequence of such molecules. It was shown, that a difference in the sequences can be sufficient to cause phase separation.