Regensburg 2013 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 2: Interfaces and Thin Films I (joint session with DECHEMA and VDI)

CPP 2.13: Talk

Monday, March 11, 2013, 13:00–13:15, H40

Living polymer system in contact with a solid substrate. — •Dewen Sun and Marcus Müller — Institut für Theoretische Physik der Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Niedersachsen, Deutschland

Systems, in which polymerization takes place under the condition of chemical equilibrium between polymers and their respective monomers are termed "living polymer systems". The reversible bonding gives rise to a chain length polydispersity in these complex polymer fluids. Using computer simulation of a soft, coarse-grained model, we investigate how the presence of a solid substrate influences the behavior of living polymer system in the narrow interface between a solid substrate and a polymer melt and in the wider interphase region. We observe that the contact with a solid substrate in a film geometry alters the local mean molecular weight and the local molecular weight distribution and we discuss the changes as a function of the scission energy.