Comment on "from Rouse dynamics to local relaxation: A neutron spin echo study on polyisobutylene melts" [J. Chem. Phys. 111, 6107 (1999)]

Abstract

The dynamic structure factor of polyisobutylene chains in a melt is calculated using a semiflexible chain model. It is demonstrated that recently reported deviations between the theoretical calculations and experimental data are due to the use of an inappropriate model parameter. © 2000 American Institute of Physics.