Oxygen plasmas

A very simple tape test was used to demonstrate that a significant increase in adhesion of copper to PS accompanied formation of this complex. Copper films applied to clean PS were easily removed when a tape was pressed against the copper films and then peeled away. However, copper films applied to PS that was treated with an oxygen plasma were never removed by the tape, indicating significantly increased adhesion. 

Exposure of the polyimide to an oxygen plasma for times as short as I s... 

Fig. 25. C(ls) XPS speetra of PMDA/ODA before treatment with an oxygen plasma. Reprodueed by permission of John Wiley and Sons from Ref. [33].

Good Thermal and Oxidative Stability High Permeability to Gases Excellent Atomic Oxygen (Plasma) Resistance Physiological Inertness (Biocompatibility)... 

When the films were treated in either an oxygen plasma environment or under UV/ozone irradiation, the rates of oxidation were faster for the plasma process. Irradiation of chitosan solution showed that UV/ozone induces depolymerization. In both plasma and UV/ozone reactions, the main active component for surface modification was UV irradiation at a wavelength below 360 nm [231]. 

Pastor-Bias M.M. and Martm-Martmez J.M., 2002, Different surface modifications produced by oxygen plasma and halogenation treatments on a vulcanised rubber, J. Adhes. Sci. Technol., 16(4), 409 28. 

Pastor-Bias M.M., Martm-Martmez J.M., and Dillard J.G., 1998, Surface characterization of S3mthetic vulcanized rubber treated with oxygen plasma. Surf. Intetf. Analysis, 26, 385-399. 

Polymer-free monolayers of the metal nanoparticles can be gained by a successive treatment of the films in an oxygen plasma [50-52]. 

Figure 20. Au-4f photoelectron spectra of different gold nanoparticles, treated in an oxygen plasma. All except AU55 (traces) exhibit oxide signals.

---