Miscibility of Poly(Vinyl Chloride) with Poly(Ethylene Oxide) of Different Molecular Weights

• Published in: Chemical and Biochemical Engineering Quarterly Vol. 30; no. 1; pp. 61 - 71
• Main Author: Jakić, M.
• Format: Journal Article Paper
• Language: English
• Published: Hrvatsko društvo kemijskih inženjera i tehnologa 2016
• Subjects: miscibility; poly(ethylene oxide); poly(vinyl chloride)
• ISSN: 0352-9568; 1846-5153
• DOI: 10.15255/CABEQ.2015.2290

In this work, five different techniques: dilute solution viscometry, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), Fourier transform infrared spectroscopy (FT-IR), and scanning electronic microscopy (SEM) were employed in order to evaluate interactions of amorphous poly(vinyl chloride) (PVC) and semi-crystalline poly(ethylene oxide) (PEO) in solution and solid state. The results varied significantly from one experimental technique to another. The positive interactions between the investigated polymers were found over the whole composition range only in solution. However, in the solid state, by DSC and DMA analysis, the positive interactions were found only at elevated PVC content, while FT-IR and SEM analysis could not confirm interactions between the investigated polymers.