Viscoelastic Properties of Confined Polymer Films Measured via Thermal Wrinkling
Kirt A. Page, Edwin Chan, Se Hyuk Im, Derek L. Patton, Rui Huang, Christopher Stafford
We present a new measurement technique to quantify the viscoelastic properties of polymer thin films. This approach utilizes thermally-induced surface wrinkling to measure the rubbery modulus and shear viscosity of polymer thin films. Specifically, by applying a thermal stress to a polymer film that is capped with a metal thin film, we can infer the rubbery modulus and shear viscosity of the polymer film through the time-evolved wrinkle wavelength and amplitude. This technique can be extended to probe the viscoelastic properties of nanocomposite films as well as the effect of confinement on the ultrathin polymer films.
, Chan, E.
, Im, S.
, Patton, D.
, Huang, R.
and Stafford, C.
Viscoelastic Properties of Confined Polymer Films Measured via Thermal Wrinkling, Soft Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901940
(Accessed December 4, 2023)