RT Journal Article
T1 Fluorescence probes the early formation of network at the interface of epoxy-silica nanocomposite during curing
A1 Antonelli, Claire
A1 Serrano Prieto, Berna
A1 Baselga Llidó, Juan
A1 Cabanelas Valcárcel, Juan Carlos
AB The effect of surface modified silica on the cure behavior at the interface of epoxy-silica nanocomposites has been analyzed monitoring the fluorescence of the dansyl probe located at different distances from the silica surface by means of molecular tethers. FTIR analysis revealed the catalytic role of the surface hydroxyls, which is modulated by the surface modification. Fluorescence results show that network formation and associated phenomena as gelation and vitrification occurs first at the interface. The exchange of branched species throughout the permeable interface spreads its influence to the whole system until vitrification is reached.
PB Elsevier
SN 0167-577X
YR 2014
FD 2014-12-15
LK https://hdl.handle.net/10016/26003
UL https://hdl.handle.net/10016/26003
LA eng
NO Authors are gratefully acknowledged to Spanish Ministerio de Economía y Competitividad for financial support under grant MAT2010-17091.
DS e-Archivo
RD 27 jul. 2024