By using the Furnstahl, Serot and Tang's model, the effect of density depen
dence of the effective nucleon-nucleon-rho -meson (NN rho) coupling on the
liquid-gas phase transition in hot asymmetric nuclear matter is investigate
d. A limit pressure p(lim), has been found. We found that the liquid-gas ph
ase transition cannot take place if p > p(lim). The binodal surface for den
sity dependent NN rho coupling situation is addressed. (C) 2000 Published b
y Elsevier Science B.V.