Preparation method of sterically hindered amine-terminated polyethers and preparation method of products derived from sterically hindered amine-terminated polyethers

The invention provides a preparation method of sterically hindered amine-terminated polyether and a preparation method of a product derived from the sterically hindered amine-terminated polyether. Specifically, the preparation method of the steric hindrance type amino-terminated polyether comprises the following steps: a) mixing melamine, organic alkali and a first organic solvent to obtain a mixture, and roasting the mixture to obtain a carbon nitride loaded strong alkali catalyst; and b) in the presence of the carbon nitride supported strong alkali catalyst, reacting polyether polyol with para aminobenzoate to obtain the steric hindrance type amino-terminated polyether. According to the technical scheme provided by the invention, the steric hindrance type amino-terminated polyether with a specific structure can be prepared in a simple process, high reaction rate and high purity manner by adopting the specific carbon nitride loaded strong alkali catalyst. In addition, a product obtained by using the steric h