XPS analysis of poly[(3-hydroxybutyric acid)-co-(3-hydroxyvaleric acid)] film surfaces exposed to an allylamine low-pressure plasma

✍ Scribed by André Mas; Hassan Jaaba; François Schué; Anna M. Belu; Camille M. Kassis; Richard W. Linton; Joseph M. Desimone

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 805 KB
• Volume: 198
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1997.021981133

✦ Synopsis

Homogeneous and stable layers were deposited through allylamine plasma polymerization (75 W, 100 Pa, 15 min) onto poly[(3-hydroxybutyric acid)-co-(3-hydroxyvaleric acid)] (91 : 9 wt.-%) (P(HB-co-9%HV)) film surfaces. XPS analysis using take-off angles of 20" and 70" and performed 10 days and 20 days after plasma treatment gives information on the composition (in atom %) of the modified surface: C, 62.74; N, 19.60; 0, 17.65. The unexpected oxygen percentage is weaker if argon plasma pretreatment (25 W, 40 Pa, 5 min) is applied. Then, a succinct mechanism is proposed. The study of changes in element ratios and binding energy values shows that the majority of incorporated functional groups seem to be amide and imine groups.