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QUÍMICA Zuleta, F., K. B. Wagener & P. Matloka. Producción de materiales elásticos por polimerización de α,ω-dienos acíclicos vía metátesis. Rev. Acad. Colomb. Cienc. 29 (111): 289-294. 2005. ISSN 0370-3908. Los elastómeros son macromoléculas cuya longitud puede incrementarse hasta un 400 % cuan- do son sometidos a una fuerza externa, pero que regresan a su longitud inicial una vez ésta cesa de actuar. En este artículo se describe la aplicación de una reacción de polimerización recientemente descubierta, metátesis, en la obtención de materiales elásticos. Efectivamente, el uso de los princi- pios básicos que explican el fenómeno de la elasticidad, en la polimerización de α, ω- dienos acíclicos, mediante la reacción de metátesis, dio lugar a la transformación de materiales inicialmente frágiles al estiramiento, en materiales crecientemente elásticos. Palabras clave: Polímeros elásticos, metátesis, dienos acíclicos. Abstract Elastomers are macromolecules whose length increases up to 400% upon stress, but return to their initial length once this stress is released. The application of a recently discovered polymerization reaction, metathesis, in the obtention of elastomeric materials is described here. As a matter of fact, the use of the basic principles explaining the phenomenon of elasticity, in the polymerization of α, ω-acyclic dienes via metathesis, ADMET, allowed the transformation of materials with no elastic properties in materials increasingly elastic. Key words: elastomeric polymers, methatesis, ADMET, acyclic dienes. 1 Grupo de Síntesis y Mecanismos de Reacción en Química Orgánica, Departamento de Química,Universidad del Valle, A.A. 25360, Cali, Colombia 2 The George and Josephine Butler Laboratories, Department of Chemistry, University of Florida, Gainesville,USA PRODUCCIÓN DE MATERIALES ELÁSTICOS POR POLIMERIZACIÓN DE α,ω α,ω α,ω α,ω α,ω-DIENOS ACÍCLICOS VÍA METÁTESIS por Fabio Zuluaga 1 , Kenneth B. Wagener 2 & Piotr Matloka 2 Resumen

2005 Produccion de Materiales Elasticos via Metatesis - Fabio Zuluaga

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Se describe la aplicacion de una reaccion de polimerizacion recientemente descubierta, metatesis, en la obtencion de materiales elasticos.

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