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The studies on the effect of polymer-polymer interactions of Poly(Ethylene Glycol) [PEG] with Methyl Methacrylate and 2-Ethoxy Ethylmethacrylate(MMA/2-EOEMA) copolymer blends showed miscibility, compatibility and specific interaction due to hydrogen bond formation between hydroxyl group from PEG and ether, ester carbonyl oxygen atom from 2-EOEMA and MMA. The studies were carried out at various blend compositions with chloroform as common solvent using viscometric, FT-IR and DSC thermal analysis methods. From viscosity data based on sign convention involved in the criterion, the values of μ and α for PEG with MMA/2-EOEMA copolymer blends system was computed and found to be partially positive indicating it is partially miscible and compatible for all blends composition. The compatibility and miscibility of the blends were also supported by density measurement. The properties of specific and hydrogen bonding interactions of PEG with MMA/2-EOEMA copolymer blends are studied by spectroscopic techniques such as FT-IR and the obtained results were further confirmed by DSC thermal analysis. Spectral features from above all techniques revealed that site-specific interactions are present, consistent with a significant degree of mixing of the blend components which probes mixing on a macroscopic level, which in turn imparts the miscibility to these blends.

Studies on Specific and Hydrogen Bonding Interaction of Poly (Ethylene Glycol) with 2-Ethoxy Ethylmethacrylate Copolymer Blends