Copolymerization of polypropylene and functionalized linear α-olefin onto glass fibers
This work deals with a novel glass fiber surface modification and subsequent metallocenic propylene polymerization onto it. Experimental results are presented on methylaluminoxane (MAO) fixation at the fiber surface, followed by propylene-α-olefin graft copolymerization catalyzed by EtInd2ZrCl2/MAO....
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/38129 |
| Acceso en línea: | http://hdl.handle.net/11336/38129 |
| Access Level: | acceso abierto |
| Palabra clave: | Adhesion Improvement Copolymerization Functionalization Grafting Hydroxyolefins https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | This work deals with a novel glass fiber surface modification and subsequent metallocenic propylene polymerization onto it. Experimental results are presented on methylaluminoxane (MAO) fixation at the fiber surface, followed by propylene-α-olefin graft copolymerization catalyzed by EtInd2ZrCl2/MAO. First results indicate that part of the produced polymer is chemically bonded to the glass fiber. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray disperse energy microanalysis characterization confirm the permanence of a thin polymer layer as well as aluminum and oxygen (from the MAO) on the glass surface, even after a severe solvent extraction treatment. From these results, the copolymerization of hydroxy-α-olefin, grafted on MAO pretreated glass fiber, is foreseen as a possible way to improve fiber-matrix adhesion in glass-fiber thermoplastic composites. |
|---|