Silica particles were modified with polymerizable double bonds on the surface.Then the molecular imprinting polymer imprinted with theophylline was grafted to the surface of modified silica.

• 摘要以茶碱作为模板分子，通过对硅胶表面进行修饰后进行接枝共聚，制备了基于硅胶表面修饰的分子印迹聚合物。