Polymer Segmental Cross-Correlations from Dielectric Relaxation Spectra   of Block Copolymers
  Dielectric relaxation spectra of block polymers containing sequential type-A dipoles are considered. Spectra of a specific set of block copolymers can be combined to isolate the dynamic cross-correlation between the motions of two distinct parts of the same polymer chain. Unlike past treatments of this problem, no model is assumed for the underlying polymer dynamics. 
George D. J. Phillies
cond-mat.soft