Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2003-08-19
Physics
Condensed Matter
Soft Condensed Matter
12 pages, 11 ps figures. Accepted for publication in J. Chem. Phys
Scientific paper
10.1063/1.1610445
Single-chain Monte Carlo simulations of amphiphilic diblock star copolymers were carried out in continuous space using implicit solvents. Two distinct architectures were studied: stars with the hydrophobic blocks attached to the core, and stars with the polar blocks attached to the core, with all arms being of equal length. The ratio of the lengths of the hydrophobic block to the length of the polar block was varied from 0 to 1. Stars with 3, 6, 9 or 12 arms, each of length 10, 15, 25, 50, 75 and 100 Kuhn segments were analysed. Four distinct types of conformations were observed for these systems. These, apart from studying the snapshots from the simulations, have been quantitatively characterised in terms of the mean-squared radii of gyration, mean-squared distances of monomers from the centre-of-mass, asphericity indices, static scattering form factors in the Kratky representation as well as the intra-chain monomer-monomer radial distribution functions.
Connolly Ronan
Kuznetsov Yuri A.
Timoshenko Edward G.
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