| Author(s): |
Edwin P. Chan; Kirt A. Page; Christopher M. Stafford; |
| Title: |
Measuring the viscoelastic properties of confined polymer films by thermal wrinkling |
| Published: |
March 21, 2010 |
| Abstract: |
We demonstrate that thermal wrinkling can be utilized to measure the rubbery modulus and shear viscosity of polystyrene (PS) thin films as a function of temperature. Specifically, we use surface laser-light scattering (SLS) to characterize the wrinkled surface in real-time in order to monitor the changes in morphology as a function of annealing time at fixed annealing temperatures. The results from such experiments are compared to a theoretical model,11 from which the viscoelastic properties of the PS thin film are extracted |
| Conference: |
American Chemical Scoiety, Spring 2010 National Meeting & Exposition |
| Volume: |
51 |
| Issue: |
1 |
| Pages: |
pp. 109 - 110 |
| Location: |
San Francisco, CA |
| Dates: |
March 19-25, 2010 |
| Keywords: |
wrinkling; viscoelasticity; modulus; viscosity; light scattering; polymer; thin films |
| Research Areas: |
Polymers, Characterization, Nanomaterials, Advanced Materials, Measurements |
| PDF version: |
 Click here to retrieve PDF version of paper (699KB) |
