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Synthesis of Telechelic Oligomers via Atom Transfer Radical Polymerization, 3
Author(s) -
Otazaghine Belkacem,
Boutevin Bernard
Publication year - 2004
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200400187
Subject(s) - disproportionation , polymer chemistry , chemistry , atom transfer radical polymerization , polymerization , coupling reaction , chain transfer , telechelic polymer , catalysis , oligomer , photochemistry , radical polymerization , copolymer , polymer , end group , organic chemistry
Abstract Summary: ATRP of butyl α ‐fluoroacrylate (FABu) was carried out at 90 °C using methyl 2‐bromoisobutyrate (2‐MBiB) as initiator and the homogeneous catalyst CuBr/1,1,4,7,10,10‐hexamethyltriethylenetetramine (HMTETA). Telechelic oligomers were obtained by coupling the bromo terminated polymers in the presence of Cu (0) and 2,2′‐bipyridyl ligand. The 1 H and 19 F NMR, SEC and MALDI TOF analyses show that the poly(FABu) chains recombination was the main reaction (80% yield). About 20% of disproportionation reaction also occurs in the process, whereas transfer reactions can be neglected.Compounds produced by recombination, disproportionation and transfer during the coupling reaction of poly(FABu) oligomers.