The rheological properties of poly(1-butene) alloy within reactor were studied by double capillary rheometer.The results show that the alloy within reactor is a kind of pseudoplastic fluid with the non-Newtonian index less than 1.Its non-Newtonian index becomes larger with the temperature increasing.η a of alloy within reactor decreases from 320 Pa·s to 83 Pa·s while the temperature increases from 160 ℃ to 200 ℃ under γ of 1000 s-1.The activation energy of the alloy within reactor is smaller than that of iP...