Hybrid materials make increasing interest of scientists thank to their multi-applications. In this work, a hybrid material is synthesized from the grafting an inorganic polymer as Polysilazane and an organic polymer as Polyoxydeethylene by hydrosilylation reaction. The parameters that could influence this synthesis were investigated as temperature, catalyst amount, reactive atmosphere and the presence of solvent. By method of the nuclear magnetic resonance 1H-NMR, optimal conditions for grafting are achieved. The purity of synthesized precursor of Allylpolyoxydeethylene is also examined by 1H-NMR and 13C-NMR.