Thickness‐dependent glass transition temperature of hydroxyethyl cellulose thin films based on dielectric properties
Kemal Ulutas,
Sahin Yakut,
Deniz Bozoglu
et al.
Abstract:Hydroxyethyl cellulose (HEC) thin films with a molecular weight of 720,000 g/mol deposited by thermal evaporation in a thickness range of 250, 500, and 750 nm were measured in a frequency range of 1–105 Hz and a temperature range of 233–373 K for dielectric characterization with increments of 10 K. Dielectric results were used to derive and evaluate the glass transition temperature and ductility, which are essential parameters for structural analysis. Results showed that the thickness of HEC thin films was an … Show more
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