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BIBTEX RIS

Positron annihilation and differential scanning calorimetry investigations in poly(methylmethacrylate)/low molecular weight poly(ethylene oxide) polymer blends

2000; Wiley; Volume: 38; Issue: 8 Linguagem: Inglês

10.1002/(sici)1099-0488(20000415)38

ISSN

1099-0488

Autores

J.C. Machado, Glaura G. Silva, L. S. Soares,

Tópico(s)

Membrane Separation and Gas Transport

Resumo

Positron annihilation lifetime spectroscopy (PALS) and differential scanning calorimetry (DSC) measurements were performed in atactic poly(methylmethacrylate) and low molecular weight poly(ethylene oxide) (PEO) polymer blends, prepared by codissolution in acetonitrile, covering the full range of composition. Results from the two techniques indicate that a “window of miscibility” is attained at around 20–30 wt % of the semicrystalline PEO. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 1045–1052, 2000

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