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Publication Citation: Swelling of ultrathin crosslinked polyamide water desalination membranes

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Author(s): Edwin P. Chan; Allison P. Young; Jung-Hyun Lee; Jun-Young Chung; Christopher M. Stafford;
Title: Swelling of ultrathin crosslinked polyamide water desalination membranes
Published: December 27, 2012
Abstract: We study the water swelling behavior of semi-aromatic crosslinked polyamide ultrathin films in order to characterize the materials properties of the polymer network. Specifically, we utilize X-ray reflectivity and quartz crystal microbalance to measure film thickness increase and mass uptake of the polyamide films due to swelling, respectively. With the aid of the Flory-Rehner theory used to describe the swelling behavior of polymer networks, we are able to extract the Flory interaction parameter and the monomer units between crosslinks by performing the swelling experiments at different levels of hydration.
Citation: Journal of Polymer Science Part B-Polymer Physics
Volume: 51
Issue: 6
Pages: pp. 385 - 391
Keywords: desalination; membranes; swelling; thin films; water purification
Research Areas: Characterization, Polymers, Materials Science