Poly(ethylene oxide)-polyelectrolyte blends: viscometric and thermal analysis behaviour

✍ Scribed by Soldi, Valdir; Wilhelm, Helena M; Soldi, Marly da S; Rodrigues, Jos� R?S; Pires, Alfredo T?N; Sierakowski, Maria R

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 542 KB
• Volume: 49
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(200001)49:1<81::aid-pi307>3.0.co;2-n

✦ Synopsis

The miscibility of binary poly(ethylene oxide) (PEO) and sodium poly(4-styrene sulphonate) (PSS) or [3,6]-ionene (ION) systems, was analysed in aqueous solutions and in the solid state by viscometry and thermal analysis, respectively. Both techniques indicate partial miscibility of PEO± PSS and immiscibility of PEO±ION blends. In water solution, the partial miscibility of the PEO±PSS system is probably due to the counterion Na which can partially provide the driving force association in a similar manner to that observed for PEO±surfactant systems. In blend ®lms, the PEO± polyelectrolyte interaction is also analysed in terms of the effect on the PEO crystallization observed through optical microscopy, and the results indicate compatibility between the components in the PEO±PSS system.