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Effect of Mixing Conditions on the Morphology and Properties of Polystyrene/polyethylene Blends Compatibilized with Styrene–butadiene Block Copolymers by I. Fortelný; D. Hlavatá; J. Mikešová; D. Michálková; L. Potroková; I. Šloufová is a Materials Science article available to read on EtoBox.

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## Abstract The effect of mixing conditions on the morphology, molten‐state viscoelastic properties, and tensile impact strength of polystyrene/polyethylene (80/20) blends compatibilized with styrene–butadiene block copolymers containing various numbers and lengths of blocks was studied. Under all mixing conditions, an admixture of a styrene–butadiene block copolymer led to a finer phase structure and to an increase in the dynamic viscosity, storage modulus, and tensile impact strength. The effects were stronger for S–B diblock with a short styrene block than for S–B–S–B–S pentablock with long styrene blocks (where S represents styrene and B represents butadiene). For all blends mixed longer than 2 min, the mixing time had only a small effect on their morphology and properties. Surprisingly, the localization of S–B diblock copolymers was strongly dependent on the rate of mixing. The mixing rate had a nonnegligible effect on the viscoelastic properties of the compatibilized blends. © 2003 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 609–622, 2003

Who reads Effect of Mixing Conditions on the Morphology and Properties of Polystyrene/polyethylene Blends Compatibilized with Styrene–butadiene Block Copolymers?

Author

I. Fortelný; D. Hlavatá; J. Mikešová; D. Michálková; L. Potroková; I. Šloufová

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-6266)

Published

2003

Language

EN

Field

Materials Science (Physical Sciences)