Hyperbranch polymer and preparation method thereof, and negative photosensitive resin composition containing the polymer

摘要

The present invention relates to a hyperbranched polymer, a method for preparing the same, and a negative photosensitive resin composition including the same, wherein a hyperbranched structure is formed by performing a condensation reaction of a mixture of a diol and a multiol compound and a diisocyanate compound during the preparation of the hyperbranched polymer. It forms, and introduce | transduces a desired acid value by making an acid anhydride react, and provides low viscosity and developability in the photosensitive resin composition.;Hyper Branch, Urethane, Photosensitive Resin, Diisocyanate