A new 4-vinyl benzyl tetra-coordinate silicate (VBTCS) was synthesized from a promising highly reactive penta-coordinate potassium glycolato silicate compound through a facile and one-step reaction. FT-IR, H-1 NMR, C-13 NMR and elemental analysis identified the structure of the 4-vinyl benzyl tetra-coordinate silicate. This new monomer was homopolymerized and copolymerized with styrene and butylmethacrylate, respectively. FT-IR, TG, DSC and GPC characterized polymers.