%0 Journal Article
%T Self-Assembly of Bridged Silsesquioxanes: Modulating Structural Evolution via Cooperative Covalent and Non-covalent Interactions
%+ Laboratoire Charles Coulomb (L2C)
%+ Synchrotron SOLEIL (SSOLEIL)
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM)
%+ Faculty of Science, Health, Education and Engineering (USC)
%A Creff, Gaëlle
%A Pichon, Benoît P.
%A Blanc, Christophe
%A Maurin, David
%A Sauvajol, Jean-Louis
%A Carcel, Carole
%A Moreau, Joël
%A Roy, Pascale
%A Bartlett, John R.
%A Wong Chi Man, Michel
%A Bantignies, Jean-Louis
%< avec comité de lecture
%Z L2C:13-103
%@ 0743-7463
%J Langmuir
%I American Chemical Society
%V 29
%P 5581
%8 2013-04-11
%D 2013
%R 10.1021/la400293k
%K Bridged silsesquioxanes
%K hydrogen bonding
%K hydrolysis-condensation
%K self-assembly
%K sol-gel
%Z Chemical Sciences/Material chemistryJournal articles
%X The self-assembly of a bis-urea phenylene-bridged silsesquioxane precursor during sol-gel synthesis has been investigated by in situ infrared spectroscopy, optical microscopy and light scattering. In particular, the evolution of the system as a function of processing time was correlated with covalent interactions associated with increasing polycondensation and non-covalent interactions such as hydrogen bonding. A comprehensive mechanism based on the hydrolysis of the phenylene-bridged organosilane precursor prior to the crystallization of the corresponding bridged silsesquioxane via H bonding and subsequent irreversible polycondensation is proposed.
%G English
%L hal-00819327
%U https://hal.science/hal-00819327
%~ CNRS
%~ UNIV-MONTP1
%~ UNIV-MONTP2
%~ ENSC-MONTPELLIER
%~ ICG
%~ L2C
%~ INC-CNRS
%~ SYNCHROTRON-SOLEIL
%~ MIPS
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ GS-PHYSIQUE
%~ UM1-UM2
%~ UM-2015-2021