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

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 immis...

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Bibliographic Details
Published in:Polymer international 2000-01, Vol.49 (1), p.81-87
Main Authors: Soldi, Valdir, Wilhelm, Helena M, Soldi, Marly da S, Rodrigues, José R S, Pires, Alfredo T N, Sierakowski, Maria R
Format: Article
Language:English
Subjects:
Applied sciences
blends
Exact sciences and technology
miscibility
Organic polymers
Physicochemistry of polymers
poly(ethylene oxide)
polyelectrolytes
Properties and characterization
Thermal and thermodynamic properties
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Summary: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 films, 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. © 2000 Society of Chemical Industry
ISSN:0959-8103
1097-0126
DOI:10.1002/(SICI)1097-0126(200001)49:1<81::AID-PI307>3.0.CO;2-N