caa a22 4500 463223055 CHVBK 20180405153218.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-1438-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1438-0 Melt rheology and extrudate morphology studies of polystyrene/polybutadiene blends in the presence and absence of compatibilisers [Elektronische Daten] [Susan Joseph, A. Menon, Aju Joseph, Sabu Thomas] Melt rheology and extrudate morphology of polystyrene (PS)/polybutadiene (PB) blends were studied with special reference to the effect of blend ratio and two different types of compatibilisers, the random copolymers and block copolymers. Uncompatibilized blends had viscosities approximately intermediate between those of the component polymers. In the case of uncompatibilized blends both positive and negative deviation was observed in the viscosity-composition curve at different shear rate range studied. The viscosity of the compatibilized blend was found to increase when a few percent of block copolymer was added. However, at high concentrations of the compatibiliser, the viscosity values leveled off. This is due to interfacial saturation. Morphological investigations indicated that the size of the dispersed phase initially decreased when a few percent of the block copolymer was added followed by a clear leveling off at higher concentration. However, the random copolymer was not an effective interface modifier in agreement with microscopy study. These experimental results supports the earlier investigations of solid state NMR studies on these blends (Polymer (2005) 46(22):9385). Springer Science+Business Media, LLC, 2007 Joseph Susan Department of Chemistry, St. Stephen's College, 689695, Pathanapuram, Kerala, India aut Menon A. Regional Research Laboratory, Thiruvananthapuram, Kerala, India aut Joseph Aju Mahatma Gandhi University, Priyadarshini Hills P.O, 686560, Kottayam, Kerala, India aut Thomas Sabu Mahatma Gandhi University, Priyadarshini Hills P.O, 686560, Kottayam, Kerala, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2054-2063 0022-2461 42:6<2054 2007 42 10853 https://doi.org/10.1007/s10853-006-1438-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1438-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Joseph Susan Department of Chemistry, St. Stephen's College, 689695, Pathanapuram, Kerala, India aut NATIONALLICENCE 700 1- Menon A. Regional Research Laboratory, Thiruvananthapuram, Kerala, India aut NATIONALLICENCE 700 1- Joseph Aju Mahatma Gandhi University, Priyadarshini Hills P.O, 686560, Kottayam, Kerala, India aut NATIONALLICENCE 700 1- Thomas Sabu Mahatma Gandhi University, Priyadarshini Hills P.O, 686560, Kottayam, Kerala, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2054-2063 0022-2461 42:6<2054 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer