TY - JOUR
T1 - Design of hybrid organic-inorganic materials through their structure control
T2 - The case of epoxy bearing alkoxides
AU - Alonso, Bruno
AU - Massiot, Dominique
AU - Valentini, Massimiliano
AU - Kidchob, Tongjit
AU - Innocenzi, Plinio
N1 - Funding Information:
European Commission is acknowledged for financial support through the ODEON STREP project. CNRS and Région Centre are acknowledged for funding. Franck Fayon is acknowledged for his kind support for the BABA experiments. FIRB Italian Program is acknowledged for financial support.
PY - 2008/3/15
Y1 - 2008/3/15
N2 - Hybrid organic-inorganic materials from (3-glycidoxypropyl)methyldiethoxysilane (GPMD) and [3-(2-aminoethyl)aminopropyl]trimethoxysilane (AEAPTMS) have been synthesized. The structure of the hybrid material has been studied as a function of AEAPTMS content by a combination of vibrational and nuclear magnetic resonance spectroscopies. The amine groups in AEAPTMS have shown to be very effective epoxy curing agents and the degree of condensation inside the hybrid material can be finely tuned with the amount of AEAPTMS. Fourier transform near infrared spectroscopy coupled with 2D infrared analysis has been used to elucidate the role of amines in epoxy curing. Several reactions of the amines with the epoxies have been observed, via tertiary, secondary and primary amines. At low AEAPTMS contents the hybrid material exhibits a residual mobility of the organic species, as revealed by solid state NMR spectroscopy. This property has been evaluated comparing qualitatively the residual mobility in hybrid materials synthesized with different types of organically modified alkoxides containing epoxy functional groups.
AB - Hybrid organic-inorganic materials from (3-glycidoxypropyl)methyldiethoxysilane (GPMD) and [3-(2-aminoethyl)aminopropyl]trimethoxysilane (AEAPTMS) have been synthesized. The structure of the hybrid material has been studied as a function of AEAPTMS content by a combination of vibrational and nuclear magnetic resonance spectroscopies. The amine groups in AEAPTMS have shown to be very effective epoxy curing agents and the degree of condensation inside the hybrid material can be finely tuned with the amount of AEAPTMS. Fourier transform near infrared spectroscopy coupled with 2D infrared analysis has been used to elucidate the role of amines in epoxy curing. Several reactions of the amines with the epoxies have been observed, via tertiary, secondary and primary amines. At low AEAPTMS contents the hybrid material exhibits a residual mobility of the organic species, as revealed by solid state NMR spectroscopy. This property has been evaluated comparing qualitatively the residual mobility in hybrid materials synthesized with different types of organically modified alkoxides containing epoxy functional groups.
KW - Organic-inorganic hybrids
KW - Sol-gels (xerogels)
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U2 - 10.1016/j.jnoncrysol.2007.10.030
DO - 10.1016/j.jnoncrysol.2007.10.030
M3 - Article
AN - SCOPUS:39249085865
SN - 0022-3093
VL - 354
SP - 1615
EP - 1626
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 15-16
ER -