Add to ORKGWe describe a series of surface levelling experiments in glassy polystyrene (PS) of varying molecular weight. The evolution through a mobile surface layer is described by the glassy thin film equation that was introduced and used in a previous work. Excellent agreement with the data is achieved, with surface mobility as the single free parameter. Different molecular-weight dependencies in mobility are then observed above and below the glass transition. The results are discussed in terms of surface-chain anchoring in the bulk matrix, and the length scale for surface mobility
Polymeric material near a free surface can have properties which deviate considerably from the bulk ...
Nanometer-sized thin films of small organic molecules are widely used in applications ranging from o...
Suppression of the glass transition temperature, <i>T</i><sub>g</sub>, in polymer thin films is of g...
We describe a series of surface levelling experiments in glassy polystyrene (PS) of varying molecula...
Most studies of the dynamics at the surface and in thin films of polystyrene (PS) are focused on the...
ABSTRACT: In general, the relaxation of polymers from a nonequilibrium state will occur only if the ...
Dielectric measurements of ultrathin polymer layers capped between metallic electrodes revealed, bes...
We present a comprehensive study of gold nanoparticle embedding into polystyrene (PS) surfaces at te...
The research presented in this work focuses on surface-induced confinement of poly(methyl methacryla...
The surface glass transition temperature, Tg, of several amorphous polystyrene (PS) samples each wit...
Most polymers solidify into a glassy amorphous state, accompanied by a rapid increase in the viscosi...
There has been continuing effort to understand the cause for the thickness dependence observed in th...
We studied the time evolution of the dynamics of a (3 kg/mol molecular mass) polystyrene film patter...
Polymer segments at the surface of glassy polymer films remain mobile at temperatures below the glas...
In this paper we discuss a model used to describe data on the reduced glass transitions observed in ...
Polymeric material near a free surface can have properties which deviate considerably from the bulk ...
Nanometer-sized thin films of small organic molecules are widely used in applications ranging from o...
Suppression of the glass transition temperature, <i>T</i><sub>g</sub>, in polymer thin films is of g...
We describe a series of surface levelling experiments in glassy polystyrene (PS) of varying molecula...
Most studies of the dynamics at the surface and in thin films of polystyrene (PS) are focused on the...
ABSTRACT: In general, the relaxation of polymers from a nonequilibrium state will occur only if the ...
Dielectric measurements of ultrathin polymer layers capped between metallic electrodes revealed, bes...
We present a comprehensive study of gold nanoparticle embedding into polystyrene (PS) surfaces at te...
The research presented in this work focuses on surface-induced confinement of poly(methyl methacryla...
The surface glass transition temperature, Tg, of several amorphous polystyrene (PS) samples each wit...
Most polymers solidify into a glassy amorphous state, accompanied by a rapid increase in the viscosi...
There has been continuing effort to understand the cause for the thickness dependence observed in th...
We studied the time evolution of the dynamics of a (3 kg/mol molecular mass) polystyrene film patter...
Polymer segments at the surface of glassy polymer films remain mobile at temperatures below the glas...
In this paper we discuss a model used to describe data on the reduced glass transitions observed in ...
Polymeric material near a free surface can have properties which deviate considerably from the bulk ...
Nanometer-sized thin films of small organic molecules are widely used in applications ranging from o...
Suppression of the glass transition temperature, <i>T</i><sub>g</sub>, in polymer thin films is of g...