1. Open Access Kent State
  2. Surface Dynamics in Rubbed Polymer Thin Films Probed with Optical Birefringence Measurements
Author(s)
Abstract

Measurements of the optical birefringence were used to probe the relaxation of rubbed ultrathin polystyrene (PS) films on glass substrates. It was found that the glass transition temperature, Tg, of the films dropped by 15−20 K as the film thickness decreased from 10 μm to 5.8 nm. Experiments on thick films (∼10 μm) revealed that molecules closer to the polymer−air interface relax more quickly than molecules farther from the interface. These results are explained in the context of past experimental studies of thermal properties of similar ultrathin polymer films.
Format
Article
Identifier(s)
10.1021/ma9919514
Publication Date
2000-06-07
Publication Title
Macromolecules
Volume
33
Issue
13
First Page
4903
Last Page
4909
Subject
Community
Department of Physics
Permalink https://oaks.kent.edu/article/surface-dynamics-rubbed-polymer-thin-films-probed-optical-birefringence-measurements
Schwab, A., Agra-Kooijman, D., Kim, J.-H., Kumar, S., & Dhinojwala, A. (2000). Surface Dynamics in Rubbed Polymer Thin Films Probed with Optical Birefringence Measurements. Macromolecules. https://doi.org/10.1021/ma9919514
Schwab, Alexander, Dena Agra-Kooijman, Jae-Hoon Kim, Satyendra Kumar, and Ali Dhinojwala. 2000. “Surface Dynamics in Rubbed Polymer Thin Films Probed With Optical Birefringence Measurements”. Macromolecules. https://doi.org/10.1021/ma9919514.
Schwab, A., D. Agra-Kooijman, J.-H. Kim, S. Kumar, and A. Dhinojwala. Surface Dynamics in Rubbed Polymer Thin Films Probed With Optical Birefringence Measurements. Macromolecules, 7 June 2000, doi:10.1021/ma9919514.