Premium
Heterogeneous catalysis for ring opening anionic oligomerisation
Author(s) -
Hamaide T.,
Spitz R.,
Letourneux J. P.,
Clavene J.,
Guyot A.
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940880115
Subject(s) - catalysis , alkyl , alcohol , ring (chemistry) , polymer chemistry , aluminium , polymer , grafting , molecule , chemistry , materials science , combinatorial chemistry , organic chemistry
New heterogeneous catalysts for ring opening oligomerization are obtained by grafting alkyl aluminium moieties on silica. Adding alcohol in excess causes the formation of aluminium alkoxides and allows the catalytic mode, because of a rapid exchange reaction between the grafted active centers and the free alcohols present in the medium. All the polymer chains are end‐capped by these alcohol molecules, which give functionalized oligomers.