Synthesis of Multiarm Star Polymer Based on Hyperbranched Polyester Core and Poly(ε-caprolactone) Arms and Its Application in UV-Curable Coating.

ABSTRACT: Hyperbranched polymers have attracted much attention in the field of UV-curable coatings because of its low viscosity, highly branched structure, and rich functional moieties. However, hyperbranched polymers also have some limitations. For example, the spherical structure increases the crosslinking hindrance, resulting in surplus functional moieties. In this study, a multiarm star polymer with hyperbranched polyester core and linear polymer arms was synthesized and used as UV-curable coating. H40, the fourth generation of the hyperbranched polyester, was chosen as the core owing to its low viscosity and high chemical reactivity. Poly(ε-caprolactone) (PCL) arms were introduced to increase the content of flexible segments and reduce the cross-linking hindrance. The terminal hydroxyls were th

SUBMITTER: Chen Y 

PROVIDER: S-EPMC6645226 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature