Interfacial tension, morphology and linear viscoelasticity behavior of PP/PS blends



Document title: Interfacial tension, morphology and linear viscoelasticity behavior of PP/PS blends
Journal: Polimeros (Sao Carlos)
Database: PERIÓDICA
System number: 000313875
ISSN: 1678-5169
Authors: 1
Institutions: 1Universidade de Sao Paulo, Sao Paulo. Brasil
Year:
Season: Oct-Dic
Volumen: 9
Number: 4
Pages: 71-77
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract Blends of polypropylene and polystyrene compatibilized with styrene-butadiene-styrene (SBS) or styrene-ethylene/butylene-styrene (SEBS) copolymers were studied. The morphology of these blends was studied by Scanning Electron Microscopy. Emulsion curves relating the average radius of the dispersed phase to the concentration of compatibilizer added to the blend were obtained. The rheological behavior of the blends was studied by small amplitude oscillatory shear, and correlated to the morphological observations. The interfacial tension between the components of the blends was evaluated from the rheological data. In addition, the applicability of time-temperature superposition (TTS) method for PP/PS blend was studied
Disciplines: Química
Keyword: Química de polímeros,
Mezclas,
Polipropileno,
Poliestireno,
Reología,
Morfología,
Tensión interfacial,
Viscoelasticidad
Keyword: Chemistry,
Polymer chemistry,
Blends,
Polypropylene,
Polystyrene,
Rheology,
Morphology,
Interfacial tension,
Viscoelasticity
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