✦ LIBER ✦

Phase Behaviour of Poly(ethylene oxide)/Poly(styrene-co-maleic anhydride) Blends

✍ Scribed by Al-Salah, Hasan A.; Qudah, Ali M. A.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 408 KB
Volume: 42
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(199704)42:4<429::aid-pi740>3.0.co;2-5

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✦ Synopsis

Thermal behaviour and morphology of blends of poly(ethylene oxide) (PEO) and poly(styrene-co-maleic anhydride) (SMA) prepared by the coprecipitation technique were studied by means of di †erential scanning calorimetry, optical microscopy and thermogravimetry. SMA containing 25 wt% maleic anhydride (MA) was found to be miscible with PEO when the SMA content was greater than 80%. The melting temperature and crystallinity depended on the composition of the blend. SMA appears to segregate interlamellarly during the isothermal crystallization of PEO. The thermal stability of blends was enhanced and was higher than that of pure PEO and SMA.

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