A study on miscibility of polysulfone and polydimethylsiloxane mixtures by viscometry
2016
The miscibility behavior of the blends of polysulfone (PSf) and polydimethylsiloxane (PDMS) was studied in dilute 1,2-
dichloroethane solutions at 25 0C. The intrinsic viscosity and Huggins’ parameter of the binary mixtures were determined
from the intercept and slope of the linear straight line between specific viscosity and the overall polymer concentration at the
studied compositions. From experimental results of the intrinsic viscosities of the mixtures, some miscibility parameters b ,
b , b , Δ[η] and β were obtained by applying the criteria proposed by the research groups Krigbaum and Wall, Catsiff
and Hewett, Garcia et al. and Jiang and Han, respectively. The miscibility o…
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