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Hyperbranched Poly (Ester)S from renewable Bio Monomers by Design: Nontoxic Platforms for the delivery of therapeutic agents

Hyperbranched poly(ester)s produced from nontoxic, renewable biosources offer great potential for the delivery of therapeutic agents. In general, hyperbranched poly(ester)s have been produced from multifunctional monomers without regard for gelation (coatings industry) or with reaction conditions determined empirically to avoid gelation [1-6]. This approach does not permit reproducibility of polymer molecular weight, dispersity, structure or level of end group functionality. It lacks economy in time and reagents, is not amenable to scale-up, and is intellectually unsatisfying. A better method is needed for the generation of delivery vehicles and has been developed [7-9].