Polymer, Vol.41, No.20, 7355-7360, 2000
Polymer deposition using atmospheric pressure plasma glow (APG) discharge
A stable fluoro-polymer film was incorporated onto the inner surface of commercial poly(vinyl chloride) tube by atmospheric pressure plasma glow (APG) discharge treatment. A hydrophobic surface was obtained by polymerizing monomers like hexafluoropropylene (HFP) or tetrafluoroethylene (TFE) by the APC method and had high contact angle (approximate to 98 degrees) and peaks corresponding to fluorine functionalities (at about 1200 cm(-1)) on Fourier transform infrared (FTIR) attenuated total internal reflection (ATR) spectra. The structural differences of the polymers deposited by HFP/He or TFE/He APG treatments were observed on X-ray photoelectron spectroscopy C-1s spectra: upon TFE/He APG treatment, CF2 was the main component of the deposited polymer, but upon HFP/He APG treatment, approximately equal amounts of CF, CF2 and CF3 were present in the deposited polymer.