2 papers
cond-mat.soft2024
Two relaxation mechanisms for rejuvenation of stable polymer glass
Saba Karimi, Junjie Yin, James A. Forrest
We report on the rejuvenation of thin films of polystyrene (PS) as they are heated from stable glassy states - prepared either through vapour deposition or physical aging. For film…
cond-mat.soft2023
Measurement of the depth-dependent local dynamics in thin polymer films through rejuvenation of ultrastable glasses
Saba Karimi, Junjie Yin, Thomas Salez +1
We measure the isothermal rejuvenation of stable glass films of poly(styrene) and poly(methylmethacrylate). We demonstrate that the propagation of the front responsible for the tra…