Abstract
| - A series of functionalized poly(ε-caprolactone) copolymers,poly(ε-caprolactone-co-vinylphosphonic acid) and poly(ε-caprolactone-co-dimethylvinylphosphonate), were synthesized by the free-radicalcopolymerization of 2-methylene-1,3-dioxepane with two vinyl monomers,vinylphosphonic acid anddimethyl vinylphosphonate. The copolymers have ester groups in thebackbone as well as pendantfunctional groups. The structure of each copolymer was establishedby 1H and 13C NMR as well as IRspectroscopy. Differential scanning calorimetry indicated that thecopolymer had a random structure.NMR study showed hydrogen transfer during the copolymerization.The copolymers have differentsolubility behavior due to the presence of different pendant functionalgroups.
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