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Synthesis of acrylamide end‐functionalised poly(1‐hexene) using an α‐diimine nickel catalyst
Author(s) -
Fernandes Susete,
Ascenso José R,
Gomes Pedro T,
Costa Sandra I,
Silva Leonel C,
Chien James CW,
Marques Maria M
Publication year - 2005
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1726
Subject(s) - diimine , acenaphthene , methylaluminoxane , acrylamide , 1 hexene , polymer chemistry , nickel , catalysis , dept , polymer , materials science , macromolecule , proton nmr , heteronuclear single quantum coherence spectroscopy , nuclear chemistry , chemistry , organic chemistry , copolymer , nuclear magnetic resonance spectroscopy , stereochemistry , metallocene , biochemistry , polymerization , pyrene
The nickel precursor [bis( N , N ′‐dimesitylimino)acenaphthene]dibromonickel and methylaluminoxane were used to catalyse the functionalisation of 1‐hexene with acrylamide by passivation of acrylamide with tri‐isobutylaluminium. The polymer obtained was characterised by GPC/SEC and NMR. The NMR experiments performed, COSY, DEPT, long‐range selective INEPT, HSQC and TOCSY 1D, showed that a 2,1 insertion of a single molecule of acrylamide per macromolecule had occurred at the end of the polyhexene chain. Copyright © 2004 Society of Chemical Industry