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Polyurethane structure design for pervaporation membranes

Tipo de material: TextoTextoSeries ; ournal of Membrane Science, 61, p.65-72, 1991Trabajos contenidos:
  • Cipriano, M.M
  • Diogo , A
  • Pinho, M.N
Tema(s): Recursos en línea: Resumen: Polyurea-polyurethane membranes were prepared from polymers with three isocynate terminal groups and molecular weights ranging from 3000 to 6000. Data on pervaporation of ethyl alcohol/ water mixtures were obtained for all the prepared membranes. The permeate fluxes increase with the increasing value of the prepolymers molecular weight.
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Polyurea-polyurethane membranes were prepared from polymers with three isocynate terminal groups and molecular weights ranging from 3000 to 6000. Data on pervaporation of ethyl alcohol/ water mixtures were obtained for all the prepared membranes. The permeate fluxes increase with the increasing value of the prepolymers molecular weight.

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