In situ steady state fluorescence (SSF) technique to study drying of PAAm hydrogels made of various cross-linker contents

Gülşen Akin EVINGÜR, Demet Kaya AKTAŞ, Önder PEKCAN*

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13 Atıf (Scopus)

Özet

Drying experiments of polyacrylamide (PAAm) gels were performed using steady-state fluorescence (SSF) spectrometer. Pyranine (P) was introduced as a fluorescence probe and intensity of P from various cross-linker content gel samples was monitored. It was observed that the intensity of P increased during the in situ drying processes. Gravimetrical and volumetric experiments were also performed. An empirical model was derived and introduced to determine the desorption coefficient, D of water molecules from the drying PAAm gels. It is observed that D increased as the cross-linker content was increased.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)600-605
Sayfa sayısı6
DergiChemical Engineering and Processing - Process Intensification
Hacim48
Basın numarası2
DOI'lar
Yayın durumuYayınlandı - Şub 2009

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