Molecular assembly, luminescence and morphology of novel zinc/inorganic/organic nanohybrid material with covalent linkage

摘要

Polyethylene glycol (PEG) was first modified by an inorganic component of 3-(triethoxysilyl)-propyl isocyanate (TEPIC) to form the inorganic/organic polymeric functional precursor. The modified reagent with a functional group (-NHCOO-) further behaves as a bridge which can coordinate to Zn2+ through oxygen atom and further formed Si-O backbones after hydrolysis and polycondensation processes. Subsequently, the corresponding organic/inorganic molecular-based hybrids were assembled to behave as the structural polymeric ligands with the two components equipped with covalent bonds. Finally, ternary zinc/inorganic/organic polymeric hybrid materials with chemical bond (covalent bonds of -CO-NH- and Si-O, coordination bond of Zn-O-C) have been assembled. The resulting hybrids exhibit blue luminescence and nanometer morphology. (c) 2006 Elsevier B.V. All rights reserved.