Abstract
A method to modify polymer surface properties responsible for wettability and surface free energy has been proposed. Plasma-based chemical modification of polymer surfaces with gas discharges allows adjusting their functional properties. The main changes in polymer wettability occur within short-term exposure of polymer surfaces to pulsed plasma at atmospheric pressure (1-60 sec). The contact angle values for the modified polymers depend on the gaseous medium and the conditions of the plasma processing. Changing the power, the pulse repetition rate and plasma exposure time allow controlling the free surface energy, making the surface either hydrophobic or hydrophilic.
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