Photochemical cross-linking study of polymers containing diacetylene groups in their main chain and azobenzene compounds as pendant groups

Please use this identifier to cite or link to this item: http://ri.uaemex.mx/handle20.500.11799/39988

Title:	Photochemical cross-linking study of polymers containing diacetylene groups in their main chain and azobenzene compounds as pendant groups
Keywords:	Física, Astronomía y Matemáticas;Diacetylene Cross-linking Photodegradation;info:eu-repo/classification/cti/1
Publisher:	Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
Project:	http://www.redalyc.org/revista.oa?id=942
Description:	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
URI:	http://ri.uaemex.mx/handle20.500.11799/39988
Other Identifiers:	http://hdl.handle.net/20.500.11799/39988
Rights:	info:eu-repo/semantics/Superficies y vacío info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0
Appears in Collections:	Producción

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