Phase transitions of polysulfone solution during coagulation

M. J. Han, P. M. Bummer, M. Jay, D. Bhattacharyya

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Coagulation of a polysulfone solution film was induced by water vapour sorption under atmospheric exposure, followed by water diffusion in a coagulation bath. Demixing in the skin region of the solution film can involve both equilibrium and non-equilibrium phase separation. Surface pore size of the solidified film is proportional to the duration of the liquidliquid phase separation during vapour sorption.

Original languageEnglish
Pages (from-to)4711-4714
Number of pages4
JournalPolymer
Volume36
Issue number24
DOIs
StatePublished - 1995

Bibliographical note

Funding Information:
This research project was supported by NSF-EPS-COR grant through the University of Kentucky Center of Membrane Sciences.

Keywords

  • demixing
  • phase separation
  • polysulfone
  • vitrification

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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