Title of article :
Mechanical spectroscopy of thin polystyrene films
Author/Authors :
Haramina، نويسنده , , Tatjana and Kirchheim، نويسنده , , Reiner and Tibrewala، نويسنده , , Arti and Peiner، نويسنده , , Erwin، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2008
Abstract :
Mechanical spectroscopy is applied to thin polystyrene films of 7.5–730 nm thickness spin coated on a thin silicon reed. Below a thickness of 100 nm, the α-relaxation peak (glass transition) broadens considerably and shifts to lower temperatures by a few degrees. These effects are attributed to a different polymer dynamics at the polymer/vacuum and the polymer/silicon interfaces.
Keywords :
Mechanical spectroscopy , Thin film , Glass transition
