| abstract |
In the present invention, the formula [Chemical formula 1] The present invention relates to the prepolymer of the above, a method for producing the prepolymer, a photocurable composition containing the prepolymer of the formula (I), and a method of use thereof in a photopolymerized 3D printing process. In contrast to conventional urethane (meth) acrylates, the prepolymer of formula (I) can be prepared without the use of toxic isocyanates and exhibits pendant-bonded hydroxyl groups to its molecular skeleton. With this group, additional side chains or groups can be introduced, for example to improve interaction with the inorganic filler or to enhance the functionality of the (meth) acrylate. |