{"id":23493,"date":"2003-12-06T00:00:00","date_gmt":"2003-12-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/poliesteres-y-polioxetanos-termotropicos-sa%c2%adntesis-propiedades-termicas-mecanicas-y-fenomenos-de-orientacion\/"},"modified":"2003-12-06T00:00:00","modified_gmt":"2003-12-06T00:00:00","slug":"poliesteres-y-polioxetanos-termotropicos-sa%c2%adntesis-propiedades-termicas-mecanicas-y-fenomenos-de-orientacion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/alcala\/poliesteres-y-polioxetanos-termotropicos-sa%c2%adntesis-propiedades-termicas-mecanicas-y-fenomenos-de-orientacion\/","title":{"rendered":"Poli\u00e9steres y polioxetanos termotr\u00f3picos. s\u00edntesis, propiedades t\u00e9rmicas, mec\u00e1nicas y fen\u00f3menos de orientaci\u00f3n"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Mart\u00ednez G\u00f3mez M. Ar\u00e1nzazu <\/strong><\/h2>\n<p>El objetivo principal ha sido ampliar el conocimiento sobre las propiedades y caracter\u00edsticas del estado cristal l\u00edquido en materiales pol\u00edmeros. Se describe la s\u00edntesis y caracterizaci\u00f3n termotr\u00f3pica de nuevos poli\u00e9steres semiflexibles construidos con el grupo mes\u00f3geno bibenzoato.Como espaciadores flexibles se utilizan segmentos alif\u00e1ticos que contienen grupos tio\u00e9ter o \u00e9ter. El efecto de la estructura qu\u00edmica, asimetr\u00eda, paridad y sustituci\u00f3n del espaciador en el comportamiento mesom\u00f3rfico del material es analizado. por otro lado, se describe la s\u00edntesis de pol\u00edmeros termotr\u00f3picos con unidades mes\u00f3geno-espaciador-mes\u00f3geno en las ramas laterales de una cadena principal flexible de polioxetano. El dise\u00f1o de las cadenas laterales se ha realizado considerando las tendencias mostradas por d\u00edmeros y pol\u00edmeros de cadena principal, buscando principalmente la formaci\u00f3n de mesofases con comportamiento antiferroel\u00e9ctrico.  el an\u00e1lisis del comportamiento termotr\u00f3pico de los sistemas sintetizados se ha realizado combinando las t\u00e9cnicas de calorimetr\u00eda diferencial de barrido, microscop\u00eda \u00f3ptica y difracci\u00f3n de rayos x utilizando radiaci\u00f3n conveniconal y sincrotr\u00f3n.  por otro lado se ha estudiado el fen\u00f3meno de orientaci\u00f3n an\u00f3mala, que es la orientaci\u00f3n perpendicular a la direcci\u00f3n del deformaci\u00f3n que muestran algunos pol\u00edmeros cristales l\u00edquidos cuando se deforman en condiciones adecuadas. Hay pocos trabajos publicados sobre este fen\u00f3meno y no se ha establecido las condiciones que favorecen la orientaci\u00f3n an\u00f3mala. Por ello este trabajo se ha planteado como uno de sus objetivos el estudio de la influencia de la temperatura y de la velocidad de deformaci\u00f3n en el desarrollo de la orientaci\u00f3n an\u00f3mala. Se analiza tambi\u00e9n el efecto de la orientaci\u00f3n en las propiedades mec\u00e1nicas y mecanodin\u00e1micas de un pol\u00edmero con mesofase esm\u00e9ctica de bajo orden.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Poli\u00e9steres y polioxetanos termotr\u00f3picos. s\u00edntesis, propiedades t\u00e9rmicas, mec\u00e1nicas y fen\u00f3menos de orientaci\u00f3n<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Poli\u00e9steres y polioxetanos termotr\u00f3picos. s\u00edntesis, propiedades t\u00e9rmicas, mec\u00e1nicas y fen\u00f3menos de orientaci\u00f3n <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Mart\u00ednez G\u00f3mez M. Ar\u00e1nzazu <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Alcal\u00e1<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 12\/06\/2003<\/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>Antonio Bello Ant\u00f3n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: evaristo Riande Garc\u00eda <\/li>\n<li>Jos\u00e9 Manuel Pere\u00f1a conde (vocal)<\/li>\n<li>M\u00aa pilar Tarazona lafarga (vocal)<\/li>\n<li>lisardo Nu\u00f1ez regueira (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mart\u00ednez G\u00f3mez M. Ar\u00e1nzazu El objetivo principal ha sido ampliar el conocimiento sobre las propiedades y caracter\u00edsticas [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[17426],"tags":[6676,6157,7671,2796,69613,25372],"class_list":["post-23493","post","type-post","status-publish","format-standard","hentry","category-alcala","tag-antonio-bello-anton","tag-evaristo-riande-garcia","tag-jose-manuel-perena-conde","tag-lisardo-nunez-regueira","tag-Martinez-gomez-m-aranzazu","tag-ma-pilar-tarazona-lafarga"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/23493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=23493"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/23493\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=23493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=23493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=23493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}