甲基 (2-氧代-1,3-二氧戊环-4-基)甲基 碳酸盐

反应条件: temp:170.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 5.58 g (0.03 mole) of bisphenol A, 5.28 g (0.03 mole) of methyl 2-oxo-1,3-dioxolan-4-ylmethyl carbonate, 0.174 g (0.003 mole) of KF, and 5 ml of 2-(n-butoxy)ethanol is placed in a 50-ml resin pot equipped with a mechanical stirrer and a distillation head and warmed with stirring to 170° C. After heating at 170° C. for 4 hours, the gas evolution appeared to cease and the reaction mixture becomes viscous. The hot reaction mixture is poured into 8 aluminum cups and the solvent is evaporated in a vacuum oven (150° C.) for 24 hours to give 6.8 g (90 percent yield) of a yellow, brittle polymer with 12,000 molecular weight and m.p.=116° C. "p" can be calculated to be about 40. The above structure of the polymer is confirmed by nuclear magnetic resonance spectra data. pot equipped with a mechanical stirrer a distillation head and warmed After heating at 170° C. for 4 hours the solvent is evaporated in a vacuum oven (150° C.) for 24 hours to give 6.8 g (90 percent yield) of a yellow, brittle polymer with 12,000 molecular weight and m.p.=116° C. "p"