  Jordanian quantizations of Lie algebras are studied using the factorizable
twists. For a restricted Borel subalgebras ${\bf B}^{\vee}$ of $sl(N)$ the
explicit expressions are obtained for the twist element ${\cal F}$, universal
${\cal R}$-matrix and the corresponding canonical element ${\cal T}$. It is
shown that the twisted Hopf algebra ${\cal U}_{\cal F} ({\bf B}^{\vee})$ is
self dual. The cohomological properties of the involved Lie bialgebras are
studied to justify the existence of a contraction from the Dinfeld-Jimbo
quantization to the jordanian one. The construction of the twist is generalized
to a certain type of inhomogenious Lie algebras.
