Cationic copolymerization of 1,3‐dioxolane with some cyclic ethers

Abstract

Abstract Copolymerization of 1,3‐dioxolane with tetrahydrofuran, 3,3‐bis(chloromethyl)oxacyclobutane, and 4‐chloromethyl‐1,3‐dioxolane were performed using boron fluoride etherate as catalyst. The monomer reactivity ratios at 0°C. were determined. The plot of log 1/r 1 vs. pK b of each monomer gave a straight line, which suggests that basicity of cyclic ethers may be important in determining monomer reactivity ratios in their cationic copolymerization.