Chemical Engineering of Synthesis Solutions for Multicomponent Inorganic Polymersand Ceramics

摘要

While there have been several studies reported in the literature of the structureand properties of organic/inorganic hybrid materials prepared by 'sol-gel' chemistry, less is known about how solution conditions influence copolymerization kinetics and material nanostructure. We are developing kinetic polymerization models for structure development of this class of materials. We use (29)Si nuclear magnetic resonance spectroscopy to monitor the concentrations of differently hydrolyzed and connected silicon sites, and fit integrated sets of differential equations to these concentrations to quantify kinetic trends as monomers and solution conditions are varied.