Radiation Grafting of 4-Vinylpyridine and N,N-Dimethylaminoethylmetha- Crylate from Binary Mixtures onto Polypropylene
Radiation grafting of 4-vinylpyridine (4-VP) and N,Ndimethylaminoethylmethacrylate(DMAEMA) from binary mixtures intoluene solutions was carried out onto polypropylene (PP) films. Thesimultaneous γ-iradiation of PP and monomers solutions (directmethod) at dose rate of 6 kGy/h and doses from...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2004 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:47548305 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=47548305 |
| Access Level: | acceso abierto |
| Palabra clave: | Química Vinylpyridine polypropylene copolymerization radiation grafting Dimethylaminoethylmethacrylate |
| Sumario: | Radiation grafting of 4-vinylpyridine (4-VP) and N,Ndimethylaminoethylmethacrylate(DMAEMA) from binary mixtures intoluene solutions was carried out onto polypropylene (PP) films. Thesimultaneous γ-iradiation of PP and monomers solutions (directmethod) at dose rate of 6 kGy/h and doses from 5 to 35 kGy wasused. Dependences of grafting yield on dose and ratio of monomersconcentration in solution were found. The grafted films were characterizedwith the FTIR-ATR spectroscopy. The grafted and ungrafted (inthe presence or in the absence of PP) copolymers compositions weredetermined, and their dependence on compositions of the initialmonomers nixtures were shown. Monomers reactivity ratios were calculated.These data indicate a random 4-VP and DMAEMA copolymerization. |
|---|