Structural properties of sodium ion implanted poly(vinyl alcohol) films

✍ Scribed by Narendra V. Bhat; Mandar M. Nate; Vaishali A. Bambole; M. B. Kurup

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 162 KB
• Volume: 98
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.21999

✦ Synopsis

Abstract

Poly(vinyl alcohol) (PVA) films were implanted with sodium ions at various energies and total doses. Modified films were characterized by Fourier transform IR (FTIR), UV–visible (UV–vis), X‐ray diffraction (XRD), and scanning electron microscopy (SEM). From FTIR studies, it was evident that scission of the main chain occurred together with removal of hydrogen and hydroxyl groups. Sodium ions formed weak bonds with oxygen from the neighboring chains. UV–vis studies of implanted PVA showed increases in the absorbance values with the various energies and total doses. XRD studies revealed that, as the energy and total dose increased overall, the crystallinity decreased and new peaks at different 2θ values appeared. Changes in the crystallinity were also studied for thermally annealed PVA films in order to correlate and understand the phenomena of recrystallization due to ion implantation. The morphological features of the films were investigated by SEM. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 276–283, 2005