Synthesis and characterization of hybrid cured poly(ether-urethane)acrylate/titania microcomposites formed from tetraalkoxytitanate precursor

A. L. Tolstov, V. F. Matyushov, D. O. Klymchuk
2008 eXPRESS Polymer Letters  
Hybrid poly(ether-urethane)acrylate (PEUA)/titania (TiO2) microcomposites were prepared using a novel method that includes a swelling of different photo-crosslinked PEUA networks in concentrated tetraisopropoxytitanate (Ti(OiC3H7)4 or TIPT) precursor solution in organic media followed by the hydrolysis of covalently bonded polyalkoxytitanate ([-OTi(OC3H7)2-]n) chains and their aggregation to amorphous micro-and nano-scale sized TiO2 particles. A formation of polymer/titania hybrids was
more » ... ybrids was confirmed by complex investigations of the hybrids using infrared (IR) spectroscopy, small angle X-ray scattering (SAXS) analysis, scanning electron microscopy (SEM) and gravimetry. The dependence of titania phase formation behavior versus functionality of the poly(ether-urethane)acrylate network was discussed. The presence of reactive groups in the organic network promotes the formation of surface-bonded ball-shaped type TiO2 inclusions as well as provides transparency to the hybrid film samples. The results obtained in this work can be applied for the development of polymer/TiO2 composite materials for multipurpose optical application and advanced sealants.
doi:10.3144/expresspolymlett.2008.54 fatcat:jn3k6qdwqjgbfey7j7pwb5wjsy