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The employed catalysts remain in the final rubber and cannot be recovered, thus creating various economic and environmental challenges. Herein, a light\u2010mediated curing method using multifunctional silacyclopropenes as crosslinker structures was introduced to create an effective alternative to the conventional industrial crosslinking. To evaluate the potential of the photoreaction a model study with small monofunctional silirenes was conducted. These investigations confirmed the required coupling reactivity upon irradiation and revealed an undesired rearrangement formation. Further optimization showed the reaction selectivity to be strongly influenced by the substitution of the three\u2010membered ring system and the reaction temperature. The synthesis of multifunctional silirenes was described based on the most suitable model compound to create active crosslinker scaffolds for their application in silicone curing. This photo\u2010controlled process produces catalyst and additive free elastomers from liquid silicones, including hydride\u2010, hydroxy\u2010, or vinyl terminated polydimethylsiloxanes.<\/jats:p>","DOI":"10.1002\/cssc.202201957","type":"journal-article","created":{"date-parts":[[2022,11,29]],"date-time":"2022-11-29T12:44:32Z","timestamp":1669725872000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Photo\u2010Activity of Silacyclopropenes and their Application in Metal\u2010Free Curing of Silicones"],"prefix":"10.1002","volume":"16","author":[{"given":"Matthias","family":"Nobis","sequence":"first","affiliation":[{"name":"WACKER-Institute of Silicon Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"},{"name":"WACKER-Chair of Macromolecular Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonas","family":"Futter","sequence":"additional","affiliation":[{"name":"WACKER-Chair of Macromolecular Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maximilian","family":"Moxter","sequence":"additional","affiliation":[{"name":"Consortium f\u00fcr elektrochemische Industrie WACKER Chemie AG Z  ielstattstra\u00dfe 20 81379 M\u00fcnchen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigeyoshi","family":"Inoue","sequence":"additional","affiliation":[{"name":"WACKER-Institute of Silicon Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0023-884X","authenticated-orcid":false,"given":"Bernhard","family":"Rieger","sequence":"additional","affiliation":[{"name":"WACKER-Institute of Silicon Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"},{"name":"WACKER-Chair of Macromolecular Chemistry Technical University of Munich  85747 Garching bei M\u00fcnchen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,12,19]]},"reference":[{"key":"e_1_2_7_1_1","unstructured":"\u00a0"},{"key":"e_1_2_7_2_2","volume-title":"Silicon in organic, organometallic, and polymer chemistry","author":"Brook M. 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