Formation and Properties of a Hybrid Organosilica with a p ‐Phenylene Vinylene Polymer Partially Grafted to the Walls

The present manuscript reports a mesoporous organosilica (mpSiO 2 ) containing a p ‐phenylene vinylene (PPV) co‐polymer partially grafted to the walls of the hybrid material (PPV ${ \subset }$ mpSiO 2 ). This material was obtained by using a bis‐silylated 2,5‐bis(chloromethylphenylene) as the silicon precursor in combination with tetraethyl orthosilicate (TEOS) and cetyltrimethylammonium bromide (CTABr) as the surfactant. The final polymer was formed by adding appropriate amounts of 2,2′‐{[2,5‐bis(chloromethyl)‐1,4‐phenylene]bis(oxy)}diethanol as the co‐monomer and K t BuO as the base. The resulting PPV ${ \subset }$ mpSiO 2 was characterized by XRD, SEM, TEM, FTIR spectroscopy, and magic angle spinning 29 Si NMR spectroscopy; all spectroscopic data were in agreement with the presence of a conducting polymer. The resulting PPV ${ \subset }$ mpSiO 2 material exhibits electrical conductivity, particularly after I 2 doping, an electrochemical response, and electroluminescence. Laser flash photolysis studies of PPV ${ \subset }$ mpSiO 2 indicate that this material can form PPV .+ polarons that could be responsible for the electrochemical and electroluminescent response.