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

摘要

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. (C) 2000 American Institute of Physics. [S0021-9606(00)51148-9]. [References: 8]