AbstractThis paper describes the preparation of new alkynes bearing furanic substituents and their polymerization by catalytic systems based on transition metal halides in order to obtain novel materials with original properties because of the presence of both furan moieties and alternate single and double bonds. However, difficulties arising from the specific reactivity of the heterocycle in our experimental conditions led us to envisage an indirect way to obtain well‐defined products, using an aromatic polymer as the precurso