Synthesis and characterization of hyperbranched polyesters with terminal hydroxyl groups from A and B_3 type monomers

摘要

Hyperbranched polymers are highly branched three-dimensional macromolecules. Due to their unique features such as good solubility, large amount of functional groups, and poor chain entanglement, this kind of polymers are attracting more and more interest in the application of drug delivery and building blocks of functional materials. Most of hyperbranched polymers are prepared by one-step polycondensation of AB_2 monomers. Generally, the AB_2 monomers are not directly purchased from market, and then have to be synthesized in the laboratory, which influences their large-scale fabrication, functionalization, and then application.