3 research outputs found
ΠΠ°ΡΠ΅ΡΡΠ°Π»ΠΈ XIII ΠΡΠ΅ΡΠΊΡΠ°ΡΠ½ΡΡΠΊΠΎΡ Π½Π°ΡΠΊΠΎΠ²ΠΎ-ΠΏΡΠ°ΠΊΡΠΈΡΠ½ΠΎΡ ΠΊΠΎΠ½ΡΠ΅ΡΠ΅Π½ΡΡΡ ΡΡΡΠ΄Π΅Π½ΡΡΠ², Π°ΡΠΏΡΡΠ°Π½ΡΡΠ² ΡΠ° ΠΌΠΎΠ»ΠΎΠ΄ΠΈΡ Π²ΡΠ΅Π½ΠΈΡ Β«Π’Π΅ΠΎΡΠ΅ΡΠΈΡΠ½Ρ Ρ ΠΏΡΠΈΠΊΠ»Π°Π΄Π½Ρ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΈ ΡΡΠ·ΠΈΠΊΠΈ, ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΠΊΠΈ ΡΠ° ΡΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΊΠΈΒ»
We consider a generic coarse-grained model suitable for the study of bulk self-assembly of liquid crystal (LC) macro-molecules. The cases include LC dendrimers, gold nanoparticles modified by polymer chains with terminating LC groups and others. The study is focused on the relation between a number of grafted chains, Nch, and the symmetry of the self-assembled bulk phases. Simple space-filling arguments are used first to estimate stability intervals for a rod-like, disc-like and spherulitic conformations in terms of Nch. These are followed by coarse-grained molecular dynamics
simulations for both spontaneous and aided self-assembly of LC macromolecules into bulk phases. In spontaneous self-assembly runs, essential coexistence of rod-like and disc-like conformations is observed in a broad interval of Nch, which prevents the formation of defect-free structures