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http://ri.uaemex.mx/handle20.500.11799/105811| Title: | Thermal Study of Aluminum Trifluoromethyl Sulfonate as Effective Catalyst for the Polymerization of Epoxidized Linseed Oil | Keywords: | Aluminum triflate;Oxirane aperture;Epoxidized linseed oil;info:eu-repo/classification/cti/7 | Publisher: | Physical Chemistry | Project: | 9 | Description: | Artículo derivado de un Tesista de Doctorado en Ciencia de Materiales It was studied the Aluminum Trifluoromethyl Sulfonate ((Al(OTf)3) as a very effective catalyst to polymerize Epoxidized Linseed Oil (ELO) in bulk, in a very wide range of temperatures, from room temperature (25°C) to the peak temperature of the exothermal curve of polymerization. Those temperatures and times of polymerization were depending on the amount of catalyst, which was evaluated in a very wide range of loads, from 0.5 x10-3 to 70 x10-3 molar percent. As an instance, a 55 x10-3 molar percent of catalyst showed at exothermic curve from 82 to 187°C with the peak temperature at 120.3°C. This preparation allows to ELO polymerize at 25°C in 24 hrs, at 60°C in 1hr and at 80°C in 20 min and only takes 7 min to polymerize at peak temperature. The study of the opening of the epoxy ring and polymerization of ELO was made by DSC and FTIR-HART analysis. Also was evidenced by 1H-NMR that no side reactions are promoted by this catalyst at least in the first minutes of reaction. |
URI: | http://ri.uaemex.mx/handle20.500.11799/105811 | Other Identifiers: | http://hdl.handle.net/20.500.11799/105811 | Rights: | info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
| Appears in Collections: | Producción |
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