Detection of deposition rate of plasma-polymerized films by quartz crystal microbalance

Shigeru Kurosawa, Tomoya Hirokawa, Kazuya Kashima, Hidenobu Aizawa, Dae Sang Han, Yasuo Yoshimi, Yuji Okada, Kiyoshi Yase, Jun Miyake, Minoru Yoshimoto, Jöns Hilborn

研究成果: Article

55 被引用数 (Scopus)

抄録

The deposition rates of plasma-polymerized (pp-) films of styrene, pentafluorostyrene, allyl alcohol, allylamine, methacrolein, acrolein, and acrylic acid were determined by the quartz crystal microbalance technique. Using the same polymerization conditions (100 W RF and 100 Pa vapor pressure) for the various monomers, it was found that the deposition rates were proportional to the polymerization time. The deposition rates of pp-styrene, pp-pentafluorostyrene, pp-allyl alcohol and pp-allylamine were independent of the position of the lower electrode in the plasma polymerization equipment. In contrast, the deposition rates of pp-methacrolein, pp-acrolein and pp-acrylic acid were scattered. The average deposition rate of pp-allyl alcohol was 0.42 μg/min. The average deposition rate of pp-styrene was higher by eight times, and that of pp-pentafluorostyrene was higher by 388 times than that of pp-allyl alcohol. The average deposition rate depended on the chemical structure of the monomer, giving rise to different mechanisms of polymerization. The deposition rates of monomers containing allylic hydrogens were slow due to radical-radical coupling. These unexpected but significant differences were assumed to have arisen from initiation-controlled free radical polymerization.

本文言語English
ページ(範囲)262-267
ページ数6
ジャーナルThin Solid Films
374
2
DOI
出版ステータスPublished - 2000 10 17

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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