Abstract

Spectroscopic studies with polarized light of solutes oriented in stretched polymers have proven very useful. It has been suggested that solute orientation in polyethylene takes place in the crystalline phase. It is demonstrated by means of dielectric relaxation studies of 1-bromonaphthalene is stretched polyethylene that this is unlikely to be the case. The most likely solute orientation mechanism appears to be adsorption on the lateral surfaces of the polyethylene crystallites.

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