New AB or ABA type block copolymers : atom transfer radical polymerization (ATRP) of methyl methacrylate using iodine-terminated PVDFs as (macro)initiators

SummaryPMMA homopolymer with CF3(CF2)2CF2- end group was prepared by the ATRP of MMA using CF3(CF2)2CF2-I as an initiator and copper(I) salts/bipy catalysts. This indicated the production of perfluorobutyl radicals by ATRP mechanism and successful polymerization by them. Di- and triblock copolymers...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2000-02, Vol.44 (1), p.1-8
Main Authors: JO, S.-M, LEE, W.-S, AHN, B.-S, PARK, K.-Y, KIM, K.-A, PAENG, I.-S. R
Format: Article
Language:English
Subjects:
Applied sciences
Block copolymers
Exact sciences and technology
Initiators
Iodine
NMR
Nuclear magnetic resonance
Organic polymers
Physicochemistry of polymers
Polymerization
Polymethyl methacrylate
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:SummaryPMMA homopolymer with CF3(CF2)2CF2- end group was prepared by the ATRP of MMA using CF3(CF2)2CF2-I as an initiator and copper(I) salts/bipy catalysts. This indicated the production of perfluorobutyl radicals by ATRP mechanism and successful polymerization by them. Di- and triblock copolymers were also prepared by the ATRP of MMA using iodine-terminated PVDF as (macro)initiators. The kinetic plots (ln[M]o/[M] vs. time) showed nearly first-order with respect to monomer concentration and the Mn,NMR of block copolymers increased linearly with conversion. However, iodine-terminated PVDF showed low initiator efficiency because propagating rate was much faster than initiating rate
ISSN:0170-0839
1436-2449
DOI:10.1007/s002890050566