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AB‐Block Copolymer with Moving B Blocks as a Model for Interpolymer Complexes
Author(s) -
Pevnaya Olga S.,
Kramarenko Elena Yu.,
Khokhlov Alexei R.
Publication year - 2010
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.200900078
Subject(s) - copolymer , chain (unit) , macromolecule , block (permutation group theory) , polymer , excluded volume , monte carlo method , chemistry , polymer chemistry , materials science , chemical physics , crystallography , polymer science , physics , mathematics , organic chemistry , combinatorics , biochemistry , statistics , astronomy
The conformational behavior of a single AB block copolymer is studied by Monte Carlo simulation. The A‐A and A‐B interactions have the character of excluded volume interactions while the B units attract each other; the attractive B blocks can move along the chain. The collapse transition of the chain with increasing attraction between the B units is analyzed. Intrachain separation of the A and B units takes place in the course of the chain collapse with the formation of “globule with a tail” conformations. The globule is formed by the attractive moving B blocks while the tail consists of the swollen A segments. The model of AB block copolymer with moving B blocks can describe the behavior of interpolymer complexes between a long macromolecule and shorter polymer chains.