{"id":82236,"date":"2000-01-01T00:00:00","date_gmt":"2000-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/sintesis-y-propiedades-termicas-de-homopolimeros-y-copolimeros-hidrogenados-de-13-butadieno\/"},"modified":"2000-01-01T00:00:00","modified_gmt":"2000-01-01T00:00:00","slug":"sintesis-y-propiedades-termicas-de-homopolimeros-y-copolimeros-hidrogenados-de-13-butadieno","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/sintesis-y-propiedades-termicas-de-homopolimeros-y-copolimeros-hidrogenados-de-13-butadieno\/","title":{"rendered":"Sintesis y propiedades termicas de homopolimeros y copolimeros hidrogenados de 1,3-butadieno."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Valentin Ruiz Santa Quiteria Serrano De La Cruz <\/strong><\/h2>\n<p>Mediante t\u00e9cnicas de polimerizaci\u00f3n ani\u00f3nica y aplicando las condiciones experimentales adecuadas, ha sido posible obtener polibutadienos y poli(estireno-b- butadieno-b-estireno) en un amplio intervalo de pesos moleculares, contenido en adici\u00f3n vin\u00edlica, y concentraci\u00f3n de estireno, de forma que, mediante hidrogenaci\u00f3n posterior, han conducido a modelos de copol\u00edmeros etileno\/1-buteno y copol\u00edmeros de etileno\/1-buteno con bloques poliestir\u00e9nicos en los extremos, con \u00edndices de polidispersidad mw\/mn 1,1.  el an\u00e1lisis de la cristalizaci\u00f3n din\u00e1mica y mixta de estos pol\u00edmeros, en funci\u00f3n del contenido en ramas y del peso molecular, que est\u00e1 directamente relacionado con la distribuci\u00f3n de secuencias cristalizables dentro de una misma cadena. Este fen\u00f3meno es consistente con el an\u00e1lisis te\u00f3rico realizado de la cin\u00e9tica de polimerizaci\u00f3n del 1,3-butadieno en estado no estacionario, lo que ha permitido establecer el tama\u00f1o de secuencias entre dos ramas etilo en los pol\u00edmeros hidrogenados, siguiendo una estad\u00edstica de tipo bernouilliano.  por otro lado, el an\u00e1lisis de la cin\u00e9tica de cristalizaci\u00f3n en condiciones isotermas, ha demostrado el comportamiento t\u00edpico de copol\u00edmeros cristalinos con fen\u00f3menos de atenuaci\u00f3n de la velocidad, m\u00e1s acusado al aumentar la temperatura de cristalizaci\u00f3n, la concentraci\u00f3n de ramas, el peso molecular y la concentraci\u00f3n de estireno. El an\u00e1lisis del coeficiente de temperatura ha puesto de manifiesto la gran influencia que ejercen estos par\u00e1metros sobre el producto de las energ\u00edas interfaciales, lo que pone en evidencia que ha de superarse una mayor barrera energ\u00e9tica para la formaci\u00f3n de los cristales conforme aumentan estos par\u00e1metros.#<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Sintesis y propiedades termicas de homopolimeros y copolimeros hidrogenados de 1,3-butadieno.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Sintesis y propiedades termicas de homopolimeros y copolimeros hidrogenados de 1,3-butadieno. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Valentin Ruiz Santa Quiteria Serrano De La Cruz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/2000<\/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>Carlos Marco Rocha<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: guillermo Orellana moraleda <\/li>\n<li>issa Antonio Katime amashta (vocal)<\/li>\n<li>Mar\u00eda n G\u00f3mez-fatou rodr\u00edguez (vocal)<\/li>\n<li> Amo fernandez bernardo del (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Valentin Ruiz Santa Quiteria Serrano De La Cruz Mediante t\u00e9cnicas de polimerizaci\u00f3n ani\u00f3nica y aplicando las condiciones [&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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