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Anisotropy of local relaxation properties of macromolecules. Polarized luminescence
Author(s) -
Gotlib Yuli Ya.,
Neelov Igor M.,
Torchinski Isaak A.,
Shevelev Vladimir A.
Publication year - 1993
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/mats.1993.040020101
Subject(s) - anisotropy , relaxation (psychology) , chain (unit) , macromolecule , molecular physics , ellipsoid , transverse plane , lattice (music) , kinetic energy , polymer , physics , condensed matter physics , nuclear magnetic resonance , chemistry , materials science , classical mechanics , optics , quantum mechanics , psychology , social psychology , biochemistry , structural engineering , astronomy , acoustics , engineering
A tetrahedral lattice model for a polymer chain with three‐unit kinetic elements was used to find the correlation functions which describe the local dynamics of unit vectors oriented in the longitudinal or transverse directions with respect to the chain. These unit vectors can represent the dynamics of the emitting oscillator of the marker. It is shown that the spectra for longitudinal and transverse components of the emitting oscillator differ greatly. It is also shown that at short relaxation times the anisotropy of local relaxation properties of a kinetic chain fragment may be described by an equivalent ellipsoid with an axes ratio of ca. 10.