Solid-State Polymerization of Conjugated Acetylene Compounds to Form π-Conjugated Polymers

Abstract

Since polydiacetylene derivatives are synthesized by the solid-state polymerization of butadiyne monomers, the structures of themonomers determining their alignment in the crystals are very important. By applying themolecular design strategies to obtain polymerizable monomers, several monomers with interesting structures and properties, i.e., monomers with electron-donating aromatic rings directly attached to the butadiyne moiety, gel-formable butadiyne monomers with 3,4,5- alkyloxyphenyl groups, monomers with a phenylene group sandwiched by two butadiyne moieties, and a ring monomer with two butadiyne moieties to form a tubular polymer, were synthesized and characterized.