Preparation of Propylene Carbonate Acrylate and Poly(propylene carbonate acrylate) Electrolyte Elastomer Gels. 13C NMR Evidence for Li+-Cyclic Carbonate Interaction

The phosgene-free synthesis of fast curing (2-oxo-1,3-dioxolan-4-yl)methyl acrylate (propylene carbonate acrylate, PCA) is presented. Polymerization of PCA in the presence of plasticizing propylene carbonate (PC) results in the formation of reversibly swellable elastomeric gels. The ionic conductivity of poly(PCA) plasticized with 50 wt % PCA and containing 1 M lithium triflate is 1.7×10 -5 S/cm. Evidence for Li + -cyclic carbonate interaction was found in 13 C CP-MAS NMR spectroscopic analysis of the model compound poly(vinylene carbonate) containing 1 M lithium triflate