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Chemical and thermal stability of surface‐modified porous polyethylene membranes

Greene, George and Tannenbaum, Rina 2004, Chemical and thermal stability of surface‐modified porous polyethylene membranes, Journal of dispersion science and technology, vol. 25, no. 5, pp. 609-617, doi: 10.1081/DIS-200027311.

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Title Chemical and thermal stability of surface‐modified porous polyethylene membranes
Author(s) Greene, GeorgeORCID iD for Greene, George orcid.org/0000-0003-2250-8334
Tannenbaum, Rina
Journal name Journal of dispersion science and technology
Volume number 25
Issue number 5
Start page 609
End page 617
Total pages 9
Publisher Taylor & Francis
Place of publication New York, N. Y.
Publication date 2004
ISSN 0193-2691
1532-2351
Keyword(s) hydrophilic polymer membranes
polyelectrolyte multilayers
surface wetting properties
Summary In this paper, we describe the surface modification of porous polyethylene by the adsorption of polyelectrolyte mutilayers on plasma‐activated polyethylene surfaces. We use the migration rates of deionized water as an effective alternative to contact angle measurements in order to probe the interfacial energy of the modified surface. The newly acquired surface properties that result from the surface modification are monitored with respect to several key chemical and environmental variables. These variables were chosen so that they will reflect some of the common handling procedures in a laboratory or health care environments, such as exposure to solvents of different pH and polarities, and fluctuations of ambient temperature over an extended period, i.e., “shelf‐life” duration. The stability of these surface properties of the modified membranes is a fundamental requirement for their potential use in a variety of applications involving lateral flow and binding media for bio‐assays. In this paper, we show that a membrane modified by a polyelectrolyte monolayer is more stable than a membrane that has undergone plasma activation alone, while a membrane modified by a polyelectrolyte bilayer exhibits retention of the enhanced surface hydrophilic properties under various conditions and over a long period of time.
Language eng
DOI 10.1081/DIS-200027311
Field of Research 030603 Colloid and Surface Chemistry
091205 Functional Materials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Marcel Dekker
Persistent URL http://hdl.handle.net/10536/DRO/DU:30048063

Document type: Journal Article
Collection: Institute for Frontier Materials
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