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Title: Miscibility of polymethylmethacrylate and polyethyleneglycol blends in tetrahydrofuran
Authors: Selvakumar, M.
Bhat, D.K.
Renganathan, N.G.
Issue Date: 2009
Citation: Journal of Applied Polymer Science, 2009, Vol.111, 1, pp.452-460
Abstract: The miscibility of polymethylmethacrylate (PMMA) and polyethyleneglycol (PEG) blends in tetrahydrofuran. (THF) has been investigated by viscosity, density, refractive index, and ultrasonic velocity studies. Various interaction parameters such as polymer-solvent and blend-solvent interaction parameters and heat of mixing have been calculated using the viscosity, density, and ultrasonic velocity data. The results indicated the existence of positive interactions in the blend polymer solutions and that they are miscible in THF in the entire composition range. The study also revealed that variation in the temperature does not affect the miscibility of PMMA and PEG blends in THF significantly. The presence of hydrogen bonding in the blends in the solid state has also been indicated by FTIR studies. 2008 Wiley Periodicals, Inc.
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