Intrachain dynamics and forward depolarized scattering

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Abstract
The quasielastically scattered spectrum from a dilute polymer solution in the forward depolarized configuration is shown to be generally a superposition of uniformly weighted multiple Lorentzians. This is true irrespective of the dynamic models provided that one samples only the long wavelength modes of the intrachain dynamics, there exists a normal coordinate system for the chain configuration, and the polymer chain is long enough that its mean square end‐to‐end distance is proportional to the number of chain elements.