title: Diagram of states and morphologies of flexible-semiflexible copolymer chains: A Monte Carlo simulation.
abstract: A single copolymer chain consisting of multiple flexible (F) and semiflexible (S) blocks has been studied using a continuum bead-spring model by Stochastic Approximation Monte Carlo simulations, which determine the density of states of the model. The only difference between F and S blocks is the intramolecular bending potential, all non-bonded interactions are equal. The state diagrams for this class of models display multiple nematic phases in the collapsed state, characterized through a demixing of the blocks of different stiffness and orientational ordering of the stiff blocks. We observe dumbbell-like morphologies, lamellar phases, and for the larger block lengths also Saturn-like structures with a core of flexible segments and the stiff segments forming a ring around the core.
authors.affiliation: Faculty of Physics, Moscow State University, Moscow 119991, Russia.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Zablotskiy
authors.affiliation: Faculty of Physics, Moscow State University, Moscow 119991, Russia.
authors.forename: Julia A
authors.initials: JA
authors.lastname: Martemyanova
authors.affiliation: Faculty of Physics, Moscow State University, Moscow 119991, Russia.
authors.forename: Viktor A
authors.initials: VA
authors.lastname: Ivanov
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale) 06099, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Paul