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Tailor-made soluble polymer supports: Synthesis of a series of ATRP initiators containing labile wang linkers

: Pfeifer, S.; Lutz, J.-F.


Macromolecular chemistry and physics 211 (2010), No.8, pp.940-947
ISSN: 1022-1352
Journal Article
Fraunhofer IAP ()

A series of functional initiators for atom transfer radical polymerization (ATRP) was prepared. These structures contain an ATRP initiating site, a labile p-alkoxybenzyl ester Wang linker and a functional end-group (i.e., -COOH, -N-3, -OH, -C CH, or -NHFmoc). These novel initiators can be utilized for synthesizing well-defined soluble polymer supports. For instance, the azide-, alcohol-, alkyne-, and NHFmoc- derivatives were tested as initiators for the bulk ATRP of styrene. SEC, MALDI-TOF-MS, and NMR measurements indicated that well-defined polystyrene samples with defined end-groups have been synthesized in this process. Moreover, it was demonstrated that the labile Wang linkers could be easily cleaved with a mild trifluoroacetic acid treatment.