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 language | English (US) |
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Pages (from-to) | 990-998 |
Number of pages | 9 |
Journal | Polymer |
Volume | 32 |
Issue number | 6 |
DOIs | |
State | Published - 1991 |
Externally published | Yes |
Keywords
- PMMA
- PS
- PVDF
- compatibilizers
- immiscible polymer pairs
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry