We investigate the folding transition of a single diblock copolymer consisting of a semiflexible and a flexible block. We obtain a Saturn-shaped core-shell conformation in the folded state, in which the flexible block forms a core and the semiflexible block wraps around it. We demonstrate two distinctive features of the core-shell structures: (i) The kinetics of the folding transition in the copolymer are significantly more efficient than those of a semiflexible homopolymer. (ii) The core-shell structure does not depend on the transition pathway.
Core-shell structures in single flexible-semiflexible block copolymers: Finding the free energy minimum for the folding transition
Natsuhiko Yoshinaga, Kenichi Yoshikawa; Core-shell structures in single flexible-semiflexible block copolymers: Finding the free energy minimum for the folding transition. J. Chem. Phys. 28 July 2007; 127 (4): 044902. https://doi.org/10.1063/1.2753838
Download citation file: