https://doi.org/10.1140/epje/i2008-10428-x
Regular Article
Possible stretched exponential parametrization for humidity absorption in polymers
1
Department of Physics, Bogazici University, Istanbul, Turkey
2
Department of Mathematics, Gebze Institute of Technology, Gebze-Kocaeli, Turkey
3
Department of Information Systems and Technologies, Yeditepe University, Istanbul, Turkey
4
Department of Physics, Yeditepe University, Istanbul, Turkey
* e-mail: ahacinliyan@yeditepe.edu.tr
Received:
7
November
2008
Accepted:
20
January
2009
Published online:
8
March
2009
Polymer thin films have irregular transient current characteristics under constant voltage. In hydrophilic and hydrophobic polymers, the irregularity is also known to depend on the humidity absorbed by the polymer sample. Different stretched exponential models are studied and it is shown that the absorption of humidity as a function of time can be adequately modelled by a class of these stretched exponential absorption models.
PACS: 05.45.Tp Time series analysis – / 66.30.jj Diffusion of water – / 68.43.Jk Diffusion of adsorbates, kinetics of coarsening and aggregation – / 05.45.-a Nonlinear dynamics and chaos –
© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2009
