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Miscibility of poly(2,6-dimethyl-1,4-phenylene oxide)/poly(vinyl pyrrolidone) blends

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Abstract

The miscibility of blends of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) and poly(vinylpyrrolidone) (PVP) was studied by differential scanning calorimetry (DSC) through the analysis of the glass transition temperature Tg. The dependence of Tg with the annealing temperature was determined for PPO and PVP samples of different molecular weights. The phase diagrams for blends containing three different PVP samples were established. Blends of PPO and PVP were found to be miscible for composition lower than 30% and higher than 65% of PVP. A inmiscibility window between 30 and 65% of PVP is also described.

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Authors and Affiliations

  1. Departamento de Química-Física (502), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 6177, Santiago, Chile

    Alejandra Opazo, Ligia Gargallo & Deodato Radić

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  1. Alejandra Opazo
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  2. Ligia Gargallo
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  3. Deodato Radić
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Opazo, A., Gargallo, L. & Radić, D. Miscibility of poly(2,6-dimethyl-1,4-phenylene oxide)/poly(vinyl pyrrolidone) blends. Polymer Bulletin 27, 205–211 (1991). https://doi.org/10.1007/BF00296032

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  • DOI: https://doi.org/10.1007/BF00296032

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