ISSN 4391-3199
African Journal of Chemistry ISSN 4391-3199 Vol. 5 (8), pp. 342-346, August, 2018. © International Scholars Journals
Full Length Research Paper
Miscibility studies of PVC/PMMA and PS/PMMA blends by dilute solution viscometry and FTIR
Mohammad Saleem Khan1*, Raina Aman Qazi1 and Mian Said Wahid2
1Polymer Chemistry Laboratory, National Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan.
2Government Postgraduate Jehanzeb College, Saidu Sharif, Swat, Pakistan.
Accepted 24 April 2018
Abstract
The effect of polymer-polymer interactions on the miscibility of PVC/PMMA and PS/PMMA blends were studied in a broad composition range using viscosity and FTIR techniques. From the viscometric data, the presence of attractive forces among different polymers was evaluated according to Sun et al. (1990), by the determination of parameter. Based on sign convention involved in the criterion, PS/PMMA system was found as immiscible while miscibility was observed in PVC/PMMA blend. FTIR analysis also supports the viscometric data.
Key words: Viscosity, polymer blends, poly (methyl methacrylate), poly (vinyl chloride), polystyrene, fourier transform infrared spectroscopy.