AB-Block Copolymer with Moving B Blocks as a Model for Interpolymer Complexes

✍ Scribed by Olga S. Pevnaya; Elena Yu. Kramarenko; Alexei R. Khokhlov

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 374 KB
• Volume: 19
• Category: Article
• ISSN: 1022-1344
• DOI: 10.1002/mats.200900078

✦ Synopsis

Abstract

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.

magnified image