title: Self-organization of amphiphilic macromolecules with local helix structure in concentrated solutions.
abstract: Concentrated solutions of amphiphilic macromolecules with local helical structure were studied by means of molecular dynamic simulations. It is shown that in poor solvent the macromolecules are assembled into wire-like aggregates having complex core-shell structure. The core consists of a hydrophobic backbone of the chains which intertwine around each other. It is protected by the shell of hydrophilic side groups. In racemic mixture of right-hand and left-hand helix macromolecules the wire-like complex is a chain of braid bundles of macromolecules with the same chirality stacking at their ends. The average number of macromolecules in the wire cross-section is close to that of separate bundles observed in dilute solutions of such macromolecules. The effects described here could serve as a simple model of self-organization in solutions of macromolecules with local helical structure.
authors.affiliation: A. N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova Str. 28, 119991, Moscow, Russia.
authors.forename: M K
authors.initials: MK
authors.lastname: Glagolev
authors.forename: V V
authors.initials: VV
authors.lastname: Vasilevskaya
authors.forename: A R
authors.initials: AR
authors.lastname: Khokhlov
mesh_terms: D046911:Macromolecular Substances / Q000737:chemistry; D056004:Molecular Dynamics Simulation; D015394:Molecular Structure; D012996:Solutions; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D046911:Macromolecular Substances; D012996:Solutions; D013501:Surface-Active Agents