Miscibilidade de Blendas de Poliestireno com Polímeros de Silício

  • Werlang M
  • Araújo M
  • Nunes S
  • et al.
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Abstract

RESUMO: Blendas poliméricas constituídas de polímeros de silício e poliestireno, PS, foram investigadas por microscopia eletrônica de varredura, SEM, e análise dinâmico-mecânica, DMA. As misturas com poli(tetrametilsilfenileno-siloxano), PTMPS, ricas em PS, tiveram sua morfologia caracterizada por domínios globulares de PTMPS dispersos na matriz de poliestireno. Uma morfologia típica de inversão de fases foi observada para a blenda PS/PTMPS 50/50. Constatou-se miscibilidade para as blendas de PS com poli(dimetilsilfenileno), PDSP, em todas as composições estudadas.ABSTRACT: Blends of organosilicon polymers with polystyrene, PS, were investigated by scanning electron microscopy, and dynamical mechanical analysis. Blends with poly(tetramethylsilphenylene-siloxane), PTMPS, had a morphology characterized by globular domains dispersed in the polystyrene matrix, when the PS content was high. A morphology typical of phase inversion was observed for the 50/50 PS/PTMPS blend. An apparent miscibility was observed when PS was mixed with poly(dimethylsilphenylene), PDSP, in all compositions under study.

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APA

Werlang, M. M., Araújo, M. A. de, Nunes, S. P., & Yoshida, I. V. P. (1998). Miscibilidade de Blendas de Poliestireno com Polímeros de Silício. Polímeros, 8(4), 77–81. https://doi.org/10.1590/s0104-14281998000400011

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