Process for the preparation of polyacetylene

摘要

Polyacetylene having an apparent density at 20 DEG C. greater than 0.6 g/ccm and a surface area below 60 m2/g is prepared by polymerizing gaseous acetylene in the presence of a catalytic system consisting of: (a) an oxygenized compound of Ti or V, containing at least one metal-oxygen bond; (b) an organometallic compound of aluminum containing at least one hetero-atom, of the formula: <IMAGE> wherein: <IMAGE> while R=a hydrocarbon radical with 1-18 carbon atoms, and where R'=R, or halogen or alcoxyl.