Solution and solid-state NMR investigation of poly(methyl methacrylate)/poly(vinyl pyrrolidone) blends

Authors

  • Teresinha M. F. F. Diniz,

    1. Instituto de Macromoléculas da Universidade do Rio de Janeiro (IMA/UFRJ), Cidade Universitária, Centro de Tecnologia, Ilha do Fundão, Rio de Janeiro, Brazil, CP 68525
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  • Maria I. B. Tavares

    Corresponding author
    1. Instituto de Macromoléculas da Universidade do Rio de Janeiro (IMA/UFRJ), Cidade Universitária, Centro de Tecnologia, Ilha do Fundão, Rio de Janeiro, Brazil, CP 68525
    • Instituto de Macromoléculas da Universidade do Rio de Janeiro (IMA/UFRJ), Cidade Universitária, Centro de Tecnologia, Ilha do Fundão, Rio de Janeiro, Brazil, CP 68525
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Abstract

The development of polymer blends has become very important for the polymer industry because these blends have shown to be a successful and versatile alternative way to obtain a new polymer. In this study, binary blends formed by poly(methyl methacrylate) (PMMA) and poly(vinyl pyrrolidone) were prepared by solution casting and evaluated by solution and solid-state NMR. Variations in the microstructure of PMMA were analyzed by 13C solution NMR. Solid-state NMR promotes responses on physical interaction, homogeneity, and compatibility to use these blends to understand the behavior of the ternary blends. The NMR results led-us to acquire information on the polymer blend microstructure and molecular dynamic behavior. From the NMR solution, it was possible to evaluate the microstructure of both polymer blend components; they were atactic. From the solid state, good compatibility between both polymer components was characterized. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 372–377, 2004

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