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Table 3 Surface chemical composition and atomic ratio of change of Nylon and PES modified by CF4 plasma treatment (n = 1)

From: Plasma modification of microporous polymer membranes for application in biomimetic dissolution studies

   Elemental ratio (%)
Sample C N O S F N/C O/C S/C F/C
EDS PES Theoretical 75 19 6 0 0.25 0.08 0.00
PES Unprocessed 80 15 5 0 0.19 0.06 0.00
PES CF4 Treated 78 15 5 2 0.19 0.06 0.03
Nylon Theoretical 75 12.5 12.5 0 0.16 0.16 0.00
Nylon Unprocessed 79 10 11 0 0.12 0.14 0.00
Nylon CF4 Treated 75 9 11 5 0.12 0.15 0.07
XPS PES Theoretical 75 19 6 0 0.25 0.08 0.00
PES Unprocessed 79 18 4 0 0.25 0.04 0.00
PES CF4 Treated 57 14 2 27 0.25 0.04 0.48
Nylon Theoretical 75 12.5 12.5 0 0.16 0.16 0.00
Nylon Unprocessed 75 12 13 0 0.16 0.17 0.00
Nylon CF4 Treated 43 5 7 45 0.11 0.15 1.10