Cationic Polymerization of Vinyl and Cyclic Ethers in Supercritical and Liquid Carbon Dioxide

Vinyl ethers and oxetanes heve been successfully cationically polymerized in CO 2 . These processes become heterogeneous using hydrocarbon vinyl ethers and oxetanes but high molar mass and high conversions can still bve achieved. Homogeneous cationic polymerizations are also possible with fluorocarbon-based alkyl vinyl ether and oxetane monomers. Polymerization occurs without incorporation of CO 2 into the polymer backbone for the systems used herein