Flow induced surface enrichment of poly(ethylene-block-ethylene oxide) on polypropylene by capillary rheometer

Flow induced surface enrichment of poly(ethylene-block-ethylene oxide) on polypropylene by capillary rheometer

In this study, we prepared polypropylene (PP) blends with commercially available amphiphilic diblock copolymer poly(ethylene- block -ethylene oxide) (P(E- b -EO)). Selective surface enrichment of the diblock copolymer used was observed only on the PP blend extrudates which were prepared using capill...

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Veröffentlicht in:Korea-Australia Rheology Journal 2011, 23(1), , pp.33-40
Hauptverfasser: Özen, İlhan, Rustal, Claude, Dirnberger, Klaus, Fritz, Hans-Gerhard, Eisenbach, Claus Dieter
Format: Artikel
Sprache:eng
Schlagworte:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Complex Fluids and Microfluidics
Food Science
Materials Science
Mechanical Engineering
Polymer Sciences
Soft and Granular Matter
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Zusammenfassung:In this study, we prepared polypropylene (PP) blends with commercially available amphiphilic diblock copolymer poly(ethylene- block -ethylene oxide) (P(E- b -EO)). Selective surface enrichment of the diblock copolymer used was observed only on the PP blend extrudates which were prepared using capillary rheometer with different wall shear rates showing that flow processes play an enormous role in surface migration.
ISSN:1226-119X
2093-7660
DOI:10.1007/s13367-011-0005-7