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

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In situ steady state fluorescence (SSF) technique to study drying of PAAmhydrogels made of various cross-linker contents.pdf (243.1Kb)
Date
2009
Author
Evingür, Gülşen Akın
Aktas, Demet Kaya
Pekcan, Önder
Abstract
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 crosslinker 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. (c) 2008 Elsevier B.V. All rights reserved.

Source

Chemical Engineering and Processing: Process Intensification

Issue

2

Volume

48

Pages

600-605

URI

https://hdl.handle.net/20.500.12469/1102
https://doi.org/10.1016/j.cep.2008.07.003

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Araştırma Çıktıları / WOS [1518]
  • Biyoinformatik ve Genetik / Bioinformatics and Genetics [220]

Keywords

Crosslinker
Drying
Fluorescence
Hydrogels

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