Vinyl acetate addition-fragmentation chain

Controlled/ Living radical polymerization (CRP) of vinyl acetate (VAc) via nitroxide-mediated polymerization (NMP), organocobalt-mediated polymerization, iodine degenerative transfer polymerization (DT), reversible radical addition-fragmentation chain transfer polymerization (RAFT), and atom transfer radical polymerization (ATRP) is summarized and compared with the ATRP of VAc catalyzed by copper halide/2,2 6 ,2 -terpyridine. The new copper catalyst provides the first example of ATRP of VAc with clear mechanism and the facile synthesis of poly(vinyl acetate) and its block copolymers. [Pg.139]

Another current trend in controlled radical ROP is the utilization of reversible addition-fragmentation chain transfer (RAFT), which has been widely exploited as a powerful tool to control radical polymerizations of various vinyl monomers. The radical ROPs of 5,6-benzo-2-methylene-l,3-dioxepane, a seven-membered cyclic ketene acetal, and those of 9,10-dihydroanthracene derivatives bearing exo-methylene and cyclopropane moieties have been reported. [Pg.519]