Poly(1,3-cyclohexadiene-alt-alpha-fluoroacrylonitrile): Synthesis and StructuralAnalysis of a New Alternating Copolymer

摘要

Poly(1,3-cyclohexadiene-alt-alpha-fluoroacrylonitrile) poly(1,3-CHD/alpha-FAN),an alternating copolymer of alpha-fluoroacrylonitrile and 1,3-cyclohexadiene has been prepared in bulk using varying monomer feed ratios and AIBN as initiator at 65 C. Elemental and (1)H-NMR analyses indicate that the copolymer contains an equimolar composition of alpha-FAN and 1,3-CHD as observed for alternating copolymers with donor-acceptor polymerizations. A 2-D H-COSY NMR experiment indicates that the copolymer contains 1,4-linkages across the cyclohexene unit