Chemically bonded assembly and photophysical properties of luminescent hybrid polymeric materials embedded into silicon-oxygen network and carbon unit

Through the reaction between the hydroxyl groups of 2-hydroxyl-3-methylbenzoic acid, the glycol, the diglycol or the polyglycol and the isocyanate groups of 3-(triethoxysilyl)-propyl isocyanate, the hybrid precursors were obtained and then the hybrid materials were assembled through hydrolysis and copolycondensation with the tetraethoxysilane via sol-gel process.