Phase diagrams of blends of poly(phenylene ether), polystyrene, and diglycidyl ether of bisphenol A: Influence of the molar mass of poly(phenylene ether)
Citations Over TimeTop 13% of 2006 papers
Abstract
Abstract Phase diagrams of ternary blends of poly(phenylene ether) (PPE, M n = 1.2 and 12 kg mol −1 ), polystyrene (PS, M n = 22.5 kg mol −1 ), and diglycidyl ether of bisphenol A (DGEBA) were experimentally obtained in an extended range of temperatures and fitted with the Flory–Huggins model using three binary interaction parameters. A significant increase in miscibility together with the appearance of an immiscibility loop was found for PPEs with M n values comprised in the range between 1 and 10 kg mol −1 . This enables us to obtain initial homogeneous solutions in regions of high DGEBA concentrations, a possibility that was not previously reported for this ternary blend. This opens new possibilities for the toughening of epoxies replacing a single thermoplastic with a thermoplastic blend where both components (PS and PPE) are completely miscible. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 1742–1747, 2006
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