Adhesion of glow discharge polymers

✍ Scribed by Ashok K. Sharma; Frank Millich; Eckhard W. Hellmuth

• Publisher: John Wiley and Sons
• Year: 1981
• Tongue: English
• Weight: 537 KB
• Volume: 26
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1981.070260708

✦ Synopsis

Abstract

Various reaction parameters in a propylene glow discharge polymerization were investigated with the objective of synthesizing films having good adhesion to metal and glass substrate. Monomer flow rate (at a constant pumping efficiency) was found to exert a significant effect on the quality of polymer adhesion to substrates. Good adhering polymeric films were obtained only at high flow rates where the deposition rate decreases with an increase in monomer flow rate. This observation applied also to ethylene, propane, allyl bromide, and ϵ‐caprolactam. Transmission electron microscopy of the freshly deposited polymer films indicated a defect‐free structure of the polymer surface obtained at high flow rates. The polymer surface obtained at low flow rates had a bead structure superimposed by uniformly placed circular defects.