In this paper, highly active Ziegler-Natta catalysts of MgCl<sub>2</sub> supported TiCl<sub>4</sub> for synthesis ofpolyolefins, using di-n-butyl phthalate (DNBP
Discussion is presented on the use of the photoisomerization of azobenzene chromophore in the design and preparation of novel functional materials. The two syst