Producción CyT
Artículo
Autoría
Ignacio E. dell'Erba
;
Silvana V. Asmussen
;
SCHROEDER, WALTER FABIAN
;
Claudia I. Vallo
Fecha
2012
Editorial y Lugar de Edición
ADCOTEC LTD
Revista
JOURNAL OF NANOSTRUCTURED POLYMERS AND NANOCOMPOSITES,
vol. 8
(pp. 119-126)
- ISSN 1790-4439
ADCOTEC LTD
ADCOTEC LTD
ISSN
1790-4439
Resumen
Información suministrada por el agente en
SIGEVA
Organotrialkoxysilanes (APS-PGE2) and (DAS-PGE3) were synthesized by reacting 1 mole of 3-(aminopropyl)triethoxysilane (APS) with 2 mole of phenylglycidylether (PGE) or 1 mole of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane (DAS) with 3 mole of PGE respectively. Polyhedral oligomeric silsesquioxanes functionalized with bulky amino groups (ASSQO) were prepared by hydrolytic condensation of both APS-PGE2 and DAS-PGE3 using formic acid as a catalyst. The polymerization of methacrylate...
Organotrialkoxysilanes (APS-PGE2) and (DAS-PGE3) were synthesized by reacting 1 mole of 3-(aminopropyl)triethoxysilane (APS) with 2 mole of phenylglycidylether (PGE) or 1 mole of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane (DAS) with 3 mole of PGE respectively. Polyhedral oligomeric silsesquioxanes functionalized with bulky amino groups (ASSQO) were prepared by hydrolytic condensation of both APS-PGE2 and DAS-PGE3 using formic acid as a catalyst. The polymerization of methacrylate resins photoinitiated by camphorquinone (CQ) in combination with the synthesized ASSQO was investigated. The progress of monomer conversion vs. irradiation time showed that the CQ/ASSQO pair constitutes an efficient photoinitiator system because a fast reaction and high conversion result from 60 s irradiation at 600 mW/cm2. The mechanical behaviour of these systems in flexural and compressive tests was highly dependent on the structure of the ASSQO.
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Palabras Clave
SILSESQUIOXANESMECHANICAL PROPERTIESPHOTOINITIATORNANOCOMPOSITES