Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/41891
Type: Artigo de periódico
Title: Miscibilidade de Blendas de Poliestireno com Polímeros de Silício
Title Alternative: Miscibility of blends of polystyrene and silicon polymers
Author: Werlang, Moisés M.
Araújo, Marco A. de
Nunes, Suzana P.
Yoshida, Inez Valéria P.
Abstract: 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.
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.
Subject: Blendas
poliestireno
polímeros de silício
morfologia
Blends
polystyrene
silicon polymers
morphology
Editor: Associação Brasileira de Polímeros
Rights: aberto
Identifier DOI: 10.1590/S0104-14281998000400011
Address: http://dx.doi.org/10.1590/S0104-14281998000400011
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14281998000400011
Date Issue: 1-Dec-1998
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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