Approaches to the Azahelicene System: Synthesis and Spectroscopic Characterization of Some Diazapentahelicenes

Synthesis and cationic ring-opening poly

Synthesis and cationic ring-opening polymerization of mono- and bifunctional spiro orthoesters containing ester groups and depolymerization of the obtained polymers: An approach to chemical recycling for polyesters as a model system

✍ Kiyoko Yoshida; Fumio Sanda; Takeshi Endo 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 167 KB 👁 2 views

A spiro orthoester having an ester moiety, 2-acetoxymethyl-1,4,6trioxaspiro[4.6]undecane (4) was synthesized, and its cationic polymerization and depolymerization of the obtained polymer (5) were carried out. The monomer 4 underwent cationic polymerization with a cationic catalyst to afford the corr