Modification of Poly(propylene) Membranes for Electrochemical Cells by Low-Temperature Plasma Treatment

Poly(propylene) membranes for battery systems were modified by surface oxidation using radio frequency (RF) and microwave (MW) plasma techniques. The plasmas were generated in two different gases: O2 and CO2. Impedance spectroscopy, time‐dependent contact angle measurements and pure water permeabili...

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Bibliographic Details
Published in:Plasma processes and polymers 2007-04, Vol.4 (S1), p.S1086-S1090
Main Authors: Tyczkowski, Jacek, Krawczyńska, Małgorzata, Kazimierski, Piotr
Format: Article
Language:English
Subjects:
conductivity
membranes
permeability
plasma treatment
poly(propylene)
wettability
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Summary:Poly(propylene) membranes for battery systems were modified by surface oxidation using radio frequency (RF) and microwave (MW) plasma techniques. The plasmas were generated in two different gases: O2 and CO2. Impedance spectroscopy, time‐dependent contact angle measurements and pure water permeability were utilized to characterize the properties of the membranes. It was found that the best improvement in ion conductivity (an increase by four orders of magnitude) was achieved using the O2 MW plasma. Wettability of the membrane surface and the water permeability through the membrane also increase distinctly after such a treatment.
ISSN:1612-8850
1612-8869
DOI:10.1002/ppap.200732410