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Synthesis of Telechelic Oligomers via Atom Transfer Radical Polymerization, 3

✍ Scribed by Belkacem Otazaghine; Bernard Boutevin

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
194 KB
Volume
205
Category
Article
ISSN
1022-1352

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✦ Synopsis

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.

magnified imageCompounds produced by recombination, disproportionation and transfer during the coupling reaction of poly(FABu) oligomers.

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