Adhesion and morphology of PVDF/PMMA and compatibilized PVDF/PS interfaces

D. Freitas Siqueira, F. Galembeck, Suzana Nunes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The morphology of the interface between miscible and immiscible polymer pairs was investigated. For the PVDF/PMMA system, which has a highly exothermic enthalpy of mixing, complex structures suggest the occurrence of bulk convective motion at the contact area between the two polymer melts. The immiscible pair PVDF/PS, displays a smooth interface under similar conditions. A simple method for testing compatibilizers is described. Using this method, styrene-methylmethacrylate random copolymers and PMMA were investigated as compatibilizers for the PVDF/PS blend. PVDF/PMMA/PS (1:1:1) ternary blends show some heterogeneity with small domains but their maximum tensile strength is of the same magnitude as that of PVDF/PMMA blends.

Original languageEnglish (US)
Pages (from-to)990-998
Number of pages9
JournalPolymer
Volume32
Issue number6
DOIs
StatePublished - Jan 1 1991

Keywords

  • PMMA
  • PS
  • PVDF
  • compatibilizers
  • immiscible polymer pairs

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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