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Introduction to Dynamic Light Scattering
Restricted Rotational Diffusion
3 other sections not shown
activation energy anisotropic apparent activation energy appears autocorrelation baseline CB/PMMA central spike cone boundaries cone walls correlation functions CPM concentration CPM molecules CPM sample CPM/PMMA samples CPM/PMMA spectra CPM/PMMA system DDLS spectra density depolarized experimental Fabry-Perot fast relaxation filter fluorescence free volume frequency shift GHz FSR heterodyne hindering environment HWHM hydrodynamic interferometry kcal/mole Kslow laser light scattered Lorentzian minus one sample mirror molecular NBP/OT spectra neat CPM observed optical phonons photomultiplier PMMA PMMA concentration polarization polarizeability predicted probe pycnometer refractive index relative intensities relaxation rate relaxation trends renormalized rodlike rotational diffusion coefficients rotational relaxation RRD model RRD theory sample cell sample standard deviation scattered light scattering angle shear viscosity single Lorentzian slow relaxation slow trend slower small cone angle sound speed spectral components spectral results supercooled temperature dependence thermal timescale two-Lorentzian fit unhindered rotational diffusion viscoelastic viscometry VTF Form Wang and Pecora width