Fluorescence depolarization and quenching measurements have been used to study motions of poly(methyl methacrylate) in toluene at 298 K. Data concerning segmental motion of the polymer chain have been obtained using both an "ideal" label which cannot move independently of the macromolecule and a label in which independent motion should not result in depolarization of radiation. The results compare favourably. Motions affecting the ester group and terminal macromolecular segments also have been studied. The use of naphthalene derivatives as labels of limited bulk has been made possible by the use of dynamic quenching. © 1978.
|Number of pages||6|
|Journal||European Polymer Journal|
|Publication status||Published - 1978|