Abstract
Soluble vanadium-based catalysts consisting of tris(2-methyl-2,3-butanedionato)vanadium [V(mmh) 3] or tris(acetylacetonato)vanadium [V(acac) 3] and trialkylaluminum [AlR 3 (R = Et, n-Pr and iso-Bu)] are capable of producing a high quality of polyacetylene film. Among them, the V(mmh) 3-AlEt 3 system is found to be the most promising, since it gives either a highly conductive as-grown film with 3000 S/cm or a substantially stretchable film with maximum draw ratio of 3.5 which enhances the conductivity up to 16 000 S/cm. Optimum conditions for the preparation of the catalyst are explored by considering both the molar ratio of Al/V and the aging of the catalyst.
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