Glass transition relaxations in thin suspended polymer films
Artikel i vetenskaplig tidskrift, 2007

Using dielectric spectroscopy, we probe the structural relaxation processes in thin freely suspended polystyrene films. For thin films we observe a relaxation scenario distinctly different from that of bulk polystyrene. The main glass transition relaxation becomes faster with decreasing film thickness, indicating a reduction in the glass transition temperature. For thin films we observe an additional process with an Arrhenius temperature dependence. This process is unique for thin freely suspended films and is not present in bulk polystyrene.

DYNAMICS

SIZE

FORMERS

COUPLING MODEL

BEHAVIOR

TEMPERATURE

BULK

POLYSTYRENE

Författare

Christer Svanberg

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Macromolecules

0024-9297 (ISSN) 1520-5835 (eISSN)

Vol. 40 2 312-315

Ämneskategorier

Annan teknik

DOI

10.1021/ma061967b

Mer information

Skapat

2017-10-06