Novel Polymerization of Fluorinated 2‐Vinylcyclopropane in Aqueous Solution via Cyclodextrin Complexes

Abstract

Abstract We report on the first examples of the free radical polymerization of a fluorinated 2‐vinylcyclopropane 1 and its copolymerization with an alkyl 2‐vinylcyclopropane 2 in aqueous solution via their host‐guest complexation with a random methylated β ‐cyclodextrin (RAMEB) using a water‐soluble initiator (VA50). Upon polymerization, the dethreaded cyclodextrin remained in water solution, whereas the water‐insoluble polymer precipitated out and was isolated. The polymers prepared exhibited mesophase behavior over a wide range of temperature. Both T g and T i of the copolymers increased linearly with the amount of fluorinated co‐units. Complexation of fluorinated vinylcyclopropane 1 with RAMEB and polymerization in water solution. magnified image Complexation of fluorinated vinylcyclopropane 1 with RAMEB and polymerization in water solution.