Copolymerization of methyl α-(chloromethyl)acrylate with styrene accompanied by addition-fragmentation chain transfer

SummaryCopolymerization of methyl α-(chloromethy1)acrylate (MCMA, M1) as homo-polymerizable addition-fragmentation chain transfer (AFCT) agent with styrene (St, M2) was investigated. The monomer reactivity ratios were r1 = 0.12 and r2 = 0.18 at 60° C indicating high alternating tendency. The copolym...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2003, Vol.49 (5), p.305-312
Main Authors: YAMADA, Bunichiro, HIRANO, Tomoyuki, KOBATAKE, Seiya
Format: Article
Language:English
Subjects:
Addition polymerization
Applied sciences
Chain transfer
Chlorine
Copolymerization
Copolymers
Exact sciences and technology
Fragmentation
NMR
Nuclear magnetic resonance
Organic polymers
Physicochemistry of polymers
Preparation, kinetics, thermodynamics, mechanism and catalysts
Reagents
Structural analysis
Styrenes
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Summary:SummaryCopolymerization of methyl α-(chloromethy1)acrylate (MCMA, M1) as homo-polymerizable addition-fragmentation chain transfer (AFCT) agent with styrene (St, M2) was investigated. The monomer reactivity ratios were r1 = 0.12 and r2 = 0.18 at 60° C indicating high alternating tendency. The copolymers bearing the 2-carbomethoxy-2-propenyl (CH2=C(C02Me)CH2-) ω-end group formed by AFCT were submitted for 1H-NMR structural analysis. The Mn, 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.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-002-0108-x