Abstract
Copolymerization of methyl α-(chloromethyl)acrylate (MCMA, M 1 ) as homopolymerizable addition-fragmentation chain transfer (AFCT) agent with styrene (St, M 2 ) was investigated. The monomer reactivity ratios were r 1 = 0.12 and r 2 = 0.18 at 60° C indicating high alternating tendency. The copolymers bearing the 2-carbomethoxy-2-propenyl (CH 2 =C(CO 2 Me)CH 2 -) ω-end group formed by AFCT were submitted for 1 H-NMR structural analysis. The M n of copolymer and contribution of AFCT as end forming reactions decreased and increased with increasing MCMA content in comonomer, respectively. The propenyl end groups bound to the St and MCMA units were separately detected. Furthermore, it was concluded that the MCMA-St copolymerization involves not only AFCT but also chlorine abstraction by the poly(St) radical.
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