Polymer Science Faculty Research

Title

Chain Orientation and Its Effects on Mobility at a Rubbed Surface

Document Type

Article

Publication Date

2001

Abstract

We have measured the tracer diffusion coefficient in PS films oriented by surface rubbing. The results show that the diffusion perpendicular to the rubbed surface is slower in oriented than in nonoriented chains. The decrease of the diffusion coefficient was correlated with the total oriented volume as determined by birefringence measurements.

Publication Title

Macromolecules

Volume

34

First Page

4972

Last Page

4977