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

D. Freitas Siqueira, F. Galembeck, S. Pereira Nunes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


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
Issue number6
StatePublished - 1991

Bibliographical note

Funding Information:
The authors thank Professor Dr B. A. Wolf for helpful discussions. This work was supported by Fundaqio de Amparo fi Pesquisa no Estado de Silo Paulo (contract number 87/2440/1) and Conselho Nacional de Desen-volvimento Cientifico e Tecnologico (contract numbers 400120/89-5 and PADCT 701846/87-9). INBRAC, Sio Paulo, kindly provided the Brabender mixer.


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

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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