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Title: Reactively and physically compatibilized immiscible polymer blends: Stability of the copolymer at the interface
Authors: Harrats, Charef ×
Dedecker, K
Groeninckx, Gabriƫl
Jerome, R #
Issue Date: Jan-2003
Publisher: Wiley-v c h verlag gmbh
Series Title: Macromolecular symposia vol:198 pages:183-196
Abstract: This paper reports on the interfacial behaviour of block and graft copolymers used as compatibilizers in immiscible polymer blends. A limited residence time of the copolymer at the interface has been shown in both reactive blending and blend compatibilization by preformed copolymers. Polystyrene (PS)/polyamide6 (PA6), polyphenylene oxide (PPO)/ PA6 and polymethylinethacrylate (PMMA)/PA6 blends have been reactively compatibilized by a styrene-maleic anhydride copolymer SMA. The extent of miscibility of SMA with PS, PPO and PMMA is a key criterion for the stability of the graft copolymer at the interface. For the first 10 to 15 minutes of mixing, the in situ formed copolymer is able to decrease the particle size of the dispersed phase and to prevent it from coalescencing. However, upon increasing mixing time, the copolymer leaves the interface which results in phase coalescence.
URI: 
ISSN: 1022-1360
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Chemistry - miscellaneous
× corresponding author
# (joint) last author

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