Authors
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Sagidullin, A ; Meier-Haack, J. ; Scheler, U.
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Title
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Water diffusion through asymmetric polymer membranes and polyelectrolyte multilayers
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Date
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31.12.2005
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Number
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21703
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Abstract
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Modern chemical techniques of polymer synthesis and processing permit to obtain polymeric membranes with designed properties. This direction of scientific engineering and of material science needs experimental support to study the membrane properties in detail and to show which kind of membrane modifications should be used to obtain the materials with desired properties.<br />One of the most adequate methods for obtaining information on the structure and transport properties of natural and artificially-formed porous materials and membranes is NMR-diffusometry pulsed field gradient NMR (PFG NMR) [1, 2]. In particular, this<br />method permits to determine the mean pore size of materials, d, and to estimate the average life-times of liquid molecules inside the pores. <br />The aim of the present work is to measure the main geometrical characteristics of polymeric membranes such as the pore size and, especially, to examine some features of water self-diffusion through these membranes.
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Publisher
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Diffusion-Fundamentals : The Open-Access Journal for the Basic Principles of Diffusion Theory, Experiment and Application
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Wikidata
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Citation
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Diffusion-Fundamentals : The Open-Access Journal for the Basic Principles of Diffusion Theory, Experiment and Application 2 (2005) 131.1-131.2 : http://www.uni-leipzig.de/diffusion/
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DOI
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http://www.uni-leipzig.de/diffusion/journal/pdf/volume2/diff_fund_2(2005)131.pdf
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Tags
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