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Modification of Poly(propylene) Membranes for Electrochemical Cells by Low‐Temperature Plasma Treatment
Author(s) -
Tyczkowski Jacek,
Krawczyńska Małgorzata,
Kazimierski Piotr
Publication year - 2007
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200732410
Subject(s) - membrane , wetting , contact angle , materials science , plasma , dielectric spectroscopy , conductivity , electrochemistry , surface modification , chemical engineering , analytical chemistry (journal) , permeability (electromagnetism) , microwave , electrode , composite material , chromatography , chemistry , biochemistry , physics , quantum mechanics , engineering
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: O 2 and CO 2 . 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 O 2 MW plasma. Wettability of the membrane surface and the water permeability through the membrane also increase distinctly after such a treatment.