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Polymerization of Ethylene through Reversible Addition–Fragmentation Chain Transfer (RAFT)
Author(s) -
Dommanget Cédric,
D'Agosto Franck,
Monteil Vincent
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201403491
Subject(s) - chain transfer , raft , reversible addition−fragmentation chain transfer polymerization , alkyl , fragmentation (computing) , chemistry , polymerization , ethylene , polymer chemistry , copolymer , vinyl acetate , crystallinity , radical , radical polymerization , photochemistry , organic chemistry , polymer , catalysis , crystallography , computer science , operating system
The present paper reports the first example of a controlled radical polymerization of ethylene using reversible addition–fragmentation chain transfer (RAFT) in the presence of xanthates (Alkyl‐OC(S)S‐R) as controlling agents under relative mild conditions (70 °C, <200 bars). The specific reactivity of the produced alkyl‐type propagating radicals induces a side fragmentation reaction of the stabilizing O ‐alkyl Z group of the controlling agents. This fragmentation, rarely observed in RAFT, was proven by NMR analyses. In addition, semicrystalline copolymers of ethylene and vinyl acetate were also prepared with a similar level of control.