Author/Authors :
Aizawa، نويسنده , , Hidenobu and Kurosawa، نويسنده , , Shigeru and Kobayashi، نويسنده , , Kuniyuki and Kashima، نويسنده , , Kazuya and Hirokawa، نويسنده , , Tomoya and Yoshimi، نويسنده , , Yasuo and Yoshimoto، نويسنده , , Minoru and Hirotsu، نويسنده , , Toshihiro and Miyake، نويسنده , , Jun and Tanaka، نويسنده , , Hideo، نويسنده ,
Abstract :
Plasma polymerization of styrene, allylamine and acrylic acid was performed under nine polymerization conditions. The obtained polymers generated the film-state only under these conditions. Over 90 days, the contact angles of plasma-polymerized (pp)-films were measured on glass plates coated with pp-styrene, pp-allylamine and pp-acrylic acid. The values of the contact angles of pp-styrene, pp-allylamine and pp-acrylic acid were scattered at the initial stage under the nine polymerization conditions. However, the contact angles of these films after 40 days of storage under vacuum condition always converged into one value. These converged values of contact angles were about 87° for pp-styrene, 67° for pp-allylamine and 28° for pp-acrylic acid. We assumed that this environmental adaptability of contact angle came from the turnover of the polar functional groups between the polymer surface and bulk.
Keywords :
Contact angle , Plasma-polymerized acrylic acid , Plasma-polymerized styrene , Plasma-polymerized allylamine
