| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312753 |
| ISSN: | 1516-1439 |
| Autores: | Carmo, Devaney Ribeiro do1 Stradiotto, Nelson Ramos Dias-Filho, Newton Luiz2 |
| Instituciones: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Quimica, Araraquara, Sao Paulo. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia, Ilha Solteira, Sao Paulo. Brasil |
| Año: | 2004 |
| Periodo: | Jul-Sep |
| Volumen: | 7 |
| Número: | 3 |
| Paginación: | 499-504 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | Octakis (hydridodimethylsiloxy) octasilsesquioxane was hydrosilated with allyl chloride using Spiers catalyst (H2PtCl6). This reaction was monitored using FT-IR spectroscopy. The synthesized product was characterized by 13C, 29Si NMR (MAS), SEM, FT-IR, Thermogravimetric techniques. The three propyl groups alpha, beta, gamma, (to the terminal silicon atom), associated of an allyl chloride, were clearly seen in the 13C NMR (alpha-CH2 at 31.8; beta-CH2 at 37.7; gamma-CH2 at 50.1 ppm). In addition, the 29Si NMR spectrum of the final product, exhibits three Q signals for Q type silicon attributed to Q² (-90.1) Q³ (-100.2) and Q4 (-111.3ppm). The presence of allyl chloride substitutes in octameric cube confers a relative porosity and thermal stability to the material |
| Disciplinas: | Ingeniería, Química |
| Palabras clave: | Ingeniería de materiales, Química industrial, Materiales híbridos, Síntesis química, Catalizadores, Propiedades químicas, Estabilidad térmica |
| Keyword: | Engineering, Chemistry, Materials engineering, Industrial chemistry, Hybrid materials, Chemical synthesis, Catalysts, Chemical properties, Thermal stability |
| Texto completo: | Texto completo (Ver HTML) |
