Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of thermosetting resins and functionalized polymers. Its terminal alkene groups allow for post-polymerization modifications via thiol-ene reactions or radical-initiated curing, making it valuable in developing specialty coatings, adhesives, and network polymers with tailored mechanical and thermal properties. It is also employed in materials science to construct conjugated systems for optoelectronic applications due to the presence of the ethyne bridge and aromatic moieties.