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|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|
|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 (716KB)|