{"id":11840,"date":"2018-03-09T08:57:25","date_gmt":"2018-03-09T08:57:25","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-y-desarrollo-de-nuevos-materiales-fotopolimericos-aplicados-al-almacenamiento-optico-de-la-informacion\/"},"modified":"2018-03-09T08:57:25","modified_gmt":"2018-03-09T08:57:25","slug":"estudio-y-desarrollo-de-nuevos-materiales-fotopolimericos-aplicados-al-almacenamiento-optico-de-la-informacion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/estudio-y-desarrollo-de-nuevos-materiales-fotopolimericos-aplicados-al-almacenamiento-optico-de-la-informacion\/","title":{"rendered":"Estudio y desarrollo de nuevos materiales fotopolimericos aplicados al almacenamiento optico de la informacion"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Salvador Blaya Escarre <\/strong><\/h2>\n<p>Se han desarrollado materiales de registro holografico fotopolimericos en capa solida para polivinialcohol basados en acrilamida, trietanolamina y azul de metileno para almacenamiento optico de la informacion. La composocion se ha optimizado a partir de las propiedades de las redes de difraccion generadas, alcanzandose rendimientos en difraccion superiores al 80% con una exposicion energetica de 35 mj\/cm2. Al modificar la composicion base de pva, acrilamida, trietanolamina y azul de metileno mediante la adici\u00f3n de un segundo monomero, en concreto, a\u00f1adiendo los agentes entrecruzantes n-n\u00c2\u00bf-metilenbisacrilamida (bma) y n,n\u00c2\u00bf-(1,2-dihidroxietilen) bisacrilamida (dheba), se ha mejorado la sensibilidad energetica del material hasta 5 mj\/cm2, con prestaciones identicas a las composiciones comerciales desarrolladas por du pont y polaroid.  se ha propuesto un modelo te\u00f3rico que permite estudiar el proceso de fotoblanqueo en los materiales desarrollados explicando la variacion temporal de la transmitancia, lo que ha permitido realizar parametros fotofisicos de este proceso con cada uno de los componentes del material. Del ajuste de la teoria a los datos experimentales se ha obtenido el coeficiente de absorci\u00f3n molar natural y el rendimiento cuantico de generacion de radicales.  se ha estudiado la cinetica de homopolimerizacion de la acrilamida iniciada por azul de metileno y trietanolamina, obteniendose las correspondientes variaciones temporales de cada componente para los mecanismos de terminacion bimolecular y por radicales primarios. Mediante la ecuaci\u00f3n de lorenz-lorentz se han relacionado las variables macroscopicas (modulacion de indice) con las microscopicas, lo que permite a partir de la variaci\u00f3n temporal del rendimento en difracci\u00f3n estudiar la cinetica de reacciones de fotopolimerizacion cuantitativamente obteniendo el grado conversi\u00f3n, las constantes de velocidad del mecanismo propuesto y estimar la longitud de las cadenas fo<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio y desarrollo de nuevos materiales fotopolimericos aplicados al almacenamiento optico de la informacion<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio y desarrollo de nuevos materiales fotopolimericos aplicados al almacenamiento optico de la informacion <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Salvador Blaya Escarre <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Miguel hern\u00e1ndez de elche<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/06\/2001<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Luis Carretero Lopez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: felipe S\u00e1nchez mateos <\/li>\n<li>roberto Sastre mu\u00f1oz (vocal)<\/li>\n<li>augusto Belendez vazquez (vocal)<\/li>\n<li>inmaculada Garcia-moreno gonzalo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Salvador Blaya Escarre Se han desarrollado materiales de registro holografico fotopolimericos en capa solida para polivinialcohol basados [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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