Polymer Science: Entanglement and Reptation

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Description

This lecture covers the concepts of entanglement and reptation in polymer science, explaining how chains are constrained in the condensed state and the relaxation behavior of entangled polymers. It discusses the tube model, entanglement network, entanglement time, molecular weight dependence of reptation, stress relaxation, viscosity, and corrections to the reptation model. The instructor also presents the learning outcomes related to the Rouse approach, entanglement effects, and the significance of chain length in polymer behavior.

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https://mediaspace.epfl.ch/media/0_grpmqjv5

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Polymer science or macromolecular science is a subfield of materials science concerned with polymers, primarily synthetic polymers such as plastics and elastomers. The field of polymer science includes researchers in multiple disciplines including chemistry, physics, and engineering. This science comprises three main sub-disciplines: Polymer chemistry or macromolecular chemistry is concerned with the chemical synthesis and chemical properties of polymers.

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Polymer chemistry is a sub-discipline of chemistry that focuses on the structures of chemicals, chemical synthesis, and chemical and physical properties of polymers and macromolecules. The principles and methods used within polymer chemistry are also applicable through a wide range of other chemistry sub-disciplines like organic chemistry, analytical chemistry, and physical chemistry. Many materials have polymeric structures, from fully inorganic metals and ceramics to DNA and other biological molecules.

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