Transient electric birefringence of wormlike macromolecules in electric fields of arbitrary strength: A computer simulation study

摘要: We have studied the birefringence decay of linear models macromolecules for two different types flexibility, broken-rod chain and wormlike chain, using a computer simulation transient electric experiment. paid particular attention to influence intensity orienting field, including mechanisms, induced dipole, permanent dipole. compared same radius gyration, finding that they present curve under field. seen these differences are due faster relaxation times (smaller in model) amplitudes, because, regardless type overall size molecule (measured by gyration) essentially determines longest time. also analyzed how process is affected degree orientation Studying aspect, we deformation experiment as source information. In this work developed equations characterize terms one components gyration tensor, if dynamic light scattering an field could be performed. To develop simulated Brownian dynamics models, relaxing after removal external arbitrary strength. A comparison with other methods such rigid body treatment or correlation analysis trajectories has been included. between small rigid-body only acceptable approximation obtain