(3-METACRILOXIPROPIL)TRIMETOXISILANO 3 (3-METHACRYLOXYPROPY)TRIMETHOXYSILANE 3 ESI MS 3 ESI-MS 3 HYBRIDS ORGANIC-INORGANIC MATERIALS 3 MALDI MS 3 MALDI-MS 3 MATERIALES HIBRIDOS ORGANICO-INORGANICOS 3 POLI(SILSESQUIOXANOS) 3 POLY(SILSESQUIOXANES) 3 RESINAS POLIESTER INSATURADAS 3 SILSESQUIOXANE-MODIFIED UNSATURATED POLYESTERS 3 SILSESQUIOXANES 3 SILSESQUIOXANOS 3 UNSATURATED POLYESTER 3 3 aminopropyltriethoxysilane 2 OH-functionalized organotrialkoxysilanes 2 Poly(silsesquioxanes) 2 Polyhedral oligomeric silsesquioxanes (POSS) 2 S O C bonds 2 UV-MALDI-TOF MS 2 amide 2 article 2 carbon 2 catalyst 2 chemical bond 2 chemical reaction 2 chemical structure 2 controlled study 2 ether derivative 2