Synthesis and radical ring‐opening polymerization of adamantane‐containing bifunctional vinylcyclopropane undergoing volume expansion on polymerization

Abstract

The synthesis and radical ring-opening polymerization of an adamantane-substituted bifunctional vinylcyclopropane monomer is described. The radical polymerization using AIBN as a radical initiator proceeded smoothly at 60 °C along with a large volume expansion (+6.1%) to afford the corresponding networked polymer. The structural analysis with the solid-state 13C NMR clearly revealed that radical polymerization occurred predominantly by a 1,5 ring-opened reaction. Furthermore, copolymerization of bifunctional methacrylate monomer with the vinylcyclopropane monomer provided controlled volume shrinkage by varying the feeding ratio. Additional Supporting Information may be found in the online version of this article. Supporting Information Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.