Table of Contents Author Guidelines Submit a Manuscript
International Journal of Polymer Science
Volume 2014, Article ID 495875, 8 pages
http://dx.doi.org/10.1155/2014/495875
Research Article

Effect of Phosphoric Acid Concentration on the Optical Properties of Partially Phosphorylated PVA Complexes

1Malaysian Institute of Marine Engineering Technology, Universiti Kuala Lumpur, 32200 Lumut, Perak, Malaysia
2Nanomaterials Engineering Research Group, Advanced Materials Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, 50603 Kuala Lumpur, Malaysia

Received 10 July 2014; Revised 23 October 2014; Accepted 25 October 2014; Published 18 November 2014

Academic Editor: Yulin Deng

Copyright © 2014 Asmalina Mohamed Saat and Mohd Rafie Johan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Partially phosphorylated polyvinyl alcohol (PPVA) films were prepared at five mole ratios of phosphoric acid (PA) using solution casting technique. The optical properties of the PPVA films were examined using UV-visible (UV) and photoluminescence (PL) spectroscopy. The UV absorption spectra reveal that the absorption peaks are blue-shifted with an increase in PA concentration added to the pure PVA. The PL spectra show the presence of peaks which are characteristic of isotactic (389–398, 460–462 nm), syndiotactic (418–420 nm), and atactic (440–446 nm) configurations of the PPVA. The results also show the peak of O–P–O bonding at a wavelength range of 481–489 nm.