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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 24: Poster Session I

CPP 24.27: Poster

Montag, 16. März 2020, 17:30–19:30, P3

Strain induced polymer crystallization — •Rajdeep Singh Payal¹ and Jens-Uwe Sommer^{1, 2} — ¹Leibniz Institute for Polymer Research, Hohe Str. 06, Dresden, Germany — ²Institut für Theoretische Physik, Technische Universität Dresden, Zellescher Weg 17, 01062 Dresden, Germany

Crystallization behavior of polymers is known to be influenced by the processing conditions. Lamellar thickness and crystallinity can be enhanced by the application of strain. Here, we have utilized molecular dynamics simulations and primitive path analysis to establish a direct correspondace between the themo-mechnical history of the molten state and crystallization behavior. Within linear extension regime, crystalline behavior is governed by the mixture of thermodynamic and topological effects. Partial disentanglement of the polymer chains due to applied force results in higher lamellar thickness and crystallinity. Furthermore, predicted behavior cannot be accounted using the kinectic theory of polymer crystallization.