Local segmental dynamics of polyisoprene in dilute solution: solvent and molecular weight effects

TitleLocal segmental dynamics of polyisoprene in dilute solution: solvent and molecular weight effects
Publication TypeJournal Article
Year of Publication1989
AuthorsWaldow, Dean, Johnson Brian S., Hyde Patrick D., Ediger M. D., Kitano Toshiaki, and Ito Koichi
JournalMacromolecules
Volume22
Issue3
Pagination1345-51
AbstractSolvent quality affected the local dynamics of anthracene-labeled polyisoprene in dil. soln. by changing the local segment concn. in the vicinity of the labeled segment. The local dynamics in a .THETA. solvent exhibited a mol. wt. dependence not obsd. in good solvents. The shape of the orientation autocorrelation function obtained from ps holog. grating techniques was const. under all conditions investigated. These results were consistent with the hypothesis that local segmental dynamics in dil. soln. depended only on solvent viscosity and solvent thermodn. power.