Living polymerization via anionic initiation for the synthesis of well-defined PPV materials.
The anionic polymerization of PPV via the sulfinyl precursor route is further investigated. When LHMDS is employed as the base to form the actively propagating quinodimethane system and THF as the solvent, anionic polymerizations can be observed. With the use of tert- butyl-substituted anionic initiators, specific functional groups can be built in the polymer chain and the chain length can be efficiently controlled, which is demonstrated here for the first time. With introduction of branched side chains on the aromatic core, soluble conjugated PPV material can be obtained with molecular weights in the range of 5000-16,000 g mol(-1).
Institute for Materials Research (IMO), Organic and (Bio)Polymer Chemistry, Hasselt University, Universitaire Campus, Diepenbeek, Belgium.
Inge
I
Cosemans
Jimmy
J
Wouters
Thomas
T
Cleij
Laurence
L
Lutsen
Wouter
W
Maes
Thomas
T
Junkers
Dirk
D
Vanderzande
D005663:Furans / Q000737:chemistry; D018020:Lithium Compounds / Q000737:chemistry; D015394:Molecular Structure; D008970:Molecular Weight; D058105:Polymerization; D011145:Polyvinyls / Q000138:chemical synthesis* / Q000737:chemistry; D012821:Silanes / Q000737:chemistry
D005663:Furans; D018020:Lithium Compounds; D011145:Polyvinyls; D012821:Silanes; C470024:poly(4-phenylenevinylene); C018674:tetrahydrofuran; C442341:lithium hexamethyldisilazide