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Monte Carlo Study of Heteroarm Star Copolymers in Good and Selective Solvents

✍ Scribed by Jitka Havránková; Zuzana Limpouchová; Karel Procházka

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
227 KB
Volume
12
Category
Article
ISSN
1022-1344

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✦ Synopsis

Abstract

Lattice Monte Carlo simulations of conformations of hereroarm star copolymers A~n~B~n~ in selective solvents were performed using a special variant of the Siepman and Frenkel algorithm. The effects of solvent quality, the number and lengths of blocks on the collapse of the insoluble block A, segregation of the two types of blocks and the behavior of the soluble blocks B were studied mainly for “hairy” stars containing high numbers of long arms. The simulation shows that insoluble blocks collapse in strongly selective solvents and the gravity centers of soluble and insoluble blocks separate which suggests the possibility of the formation of non‐spherical structures.

Snapshots of star a in a very bad solvent (T = 3.00) for blocks A. There are two different views of the star with a total number of arms f = 16 and number of segments N = 300.

imageSnapshots of star a in a very bad solvent (T = 3.00) for blocks A. There are two different views of the star with a total number of arms f = 16 and number of segments N = 300.

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