Lh. Chu et al., A RHEOLOGICAL MODEL FOR POLYMER BLENDS BASED ON THE CONCENTRIC MULTILAYER APPROACH .1. HOMOGENEOUS POLYMER BLENDS, Polymer international, 35(1), 1994, pp. 95-103
The melt rheological behavior of polymer blends was investigated by me
ans of a capillary rheometer. The systems chosen for study were blends
of polystyrene (PS) with different molecular weights and blends of po
ly-methylmethacrylate (PMMA) with different molecular weights. A modif
ied concentric multilayer model was proposed to correlate the rheologi
cal properties of the polmer blends with the composition and shear rat
e. The agreement between the calculated values and the measured ones i
s satisfactory.