PLASMA POLYMERIZATION Functional group continued

Nakajima et al. carried out plasma polymerization in continuous-wave and pulsed radio-frequency discharges to establish the effects of reaction conditions on the kinetics of polymer deposition as well as on the polymer structure. Under conditions favoring low deposition rates, the dominant functional group is -CF2. At higher deposition rates the of -Cp2 group concentration is reduced and a cross-linked polymer was obtained [738]. 

It is also critical to evaluate the various charged and neutral plasma-introduced species in gas-phase exposures, as well as to identify neutral and charged functional groups on polymeric substrate surfaces, to better understand plasma reaction mechanisms and other physical effects. Continued research in this area will use diagnostic techniques under the atmospheric plasma pressure environment to develop new and improved processes for functionalizing roll polymeric materials surfaces. More advanced laboratory-scale atmospheric plasma installations will also serve to enhance the chemically tailoring effects of industrial scale atmospheric plasma systems. 

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