Formation of Chain-Folded Structures from Supercooled Polymer Melts

Details Formation of Chain-Folded Structures from Supercooled Polymer Melts Formation of Chain-Folded Structures from Supercooled Polymer Melts

2000-12-14

arxiv.org/abs/cond-mat/0012264v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 5 figures

Scientific paper

10.1063/1.1415456

The formation of chain-folded structures from the melt is observed in molecular dynamics simulations resembling the lamellae of polymer crystals. Crystallization and subsequent melting temperatures are related linearly to the inverse lamellar thickness. Analysis of the single chain conformations in the crystal shows that most chains reenter the same lamella by tight backfolds. Simulations are performed with a mesoscopic bead-spring model including a specific angle bending potential. They demonstrate that chain stiffness alone, without an attractive inter-particle potential, is a sufficient driving force for the formation of chain-folded lamellae.

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