Por favor utiliza este link para citar o compartir este documento: http://repositoriodigital.academica.mx/jspui/handle/987654321/451488
Título: Photochemical cross-linking study of polymers containing diacetylene groups in their main chain and azobenzene compounds as pendant groups
Palabras clave: Física, Astronomía y Matemáticas
Diacetylene
Cross-linking
Photodegradation
Editorial: Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
Descripción: Photochemical cross-linking studies at different temperatures (room temperature, Tg and maximum exothermal of crosslinking peak) are shown for three series of polymers containing diacetylene-groups in the main chain and polar chromophores derived from benzene, azo- and di-azobenzene, as pendant groups. We establish the optimal irradiation time and temperature that permit them being poled and cross-linked with minimal dye-degradation. The degradation process was followed by a diminution of the respective maximum absorption peak. These conditions could extend the mean life-time of the second order nonlinear optical properties, studied previously. Photochemical cross-linking at each polymer´s Tg (50-130°C) was the most convenient process. It took less than 10 min and was monitored by IR spectroscopy
Other Identifiers: http://www.redalyc.org/articulo.oa?id=94219101
Aparece en las Colecciones:Superficies y vacío

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