Hyperbranched polyglycidol

Fig. 11 Alternative dendritic macromolecular structures based on dendronized polystyrene (left) and hyperbranched polyglycidol (right) used as catalyst supports...

Fig. 13.11 Hyperbranched polyglycidol as a molecular nanoparticle, with its core/shell topology.

Figure 4 Synthesis of hyperbranched polyglycidol by anionic multibranching ring-opening polymerization. Reprinted from Wilms, D. Stiriba, S.-E. Frey, H. Acc. Chem. Res. 2010, 43,129. with permission of the American Chemical Society, USA.

Fig. 6 Synthesis of branched PLAs (a) polyglycidol-g-PLA, (b) PLA-g-PLA (comb-type PLA), and (c) hyperbranched PLA...

Properties of hyperbranched polyethers prepared by cationic polymerization of glycidol have also been studied. Cationically prepared polyglycidol after esterification of hydroxyl end-groups with palmitoyl chloride showed an interesting self-assembly behavior. Depending on the solvent and content... 

Despite these important advances, the controlled preparation of branched polyglycidols with MWs exceeding 6000 has remained a challenge until very recendy. A facile two-step approach via low-MW polyglyddol macroinitiators was developed by Frey et al. Tbe polyfunctionality of tbe macroinitiators affords higher concentrations of alkoxide active sites even at elevated degrees of polymerization. Thus, hyperbranched polyglyddols of MWs up to 24 000 were obtained under slow monomer addition conditions. 

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