{"id":134426,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/obtencion-por-polimerizacion-por-dispersion-de-polioleteres-polimericos\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"obtencion-por-polimerizacion-por-dispersion-de-polioleteres-polimericos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/obtencion-por-polimerizacion-por-dispersion-de-polioleteres-polimericos\/","title":{"rendered":"Obtencion, por polimerizacion por dispersion, de polioleteres polimericos."},"content":{"rendered":"

Tesis doctoral de Mar\u00eda no Malaga Mellado <\/strong><\/h2>\n

Se describe la investigacion realizada para obtener, por polimerizacion con dispersion, polioleteres polimericos con un buen balance de sus dos propiedades mas importantes, viscosidad-tama\u00f1o de particula.En la primera parte de optimacion de variables se obtiene: – el mejor polimero estabilizante es el resultante de la esterificacion de anhidrico maleico con un polioleter convencional y oxido de propileno: – el mejor metodo de polimerizacion por dispersion consiste en a\u00f1adir el polimero estabilizante al polioleter convencional cargado al reactor. – La temperatura idonea de polimerizacion es 110g. -El mejor iniciador de polimerizacion resulta ser el abin (azobisisobutidonitrido). -Tanto el nddm (n-dodecilmercaptano) como el tcbm (tricloro bromometano) resultan adecuados trasferidores de cadena. -Se optienen los mejores productos con un agitador de paletas y 600 r.P.M. En la segunda parte se pone de manifiesto lo siguiente: – la cinetica de la polimerizacion es tipica de la polimerizacion con dispersion y sobre la viscosidad-tama\u00f1o de particula de los productos resultantes influyen sobre la viscosidad del polioleter convencional, la viscosidad del polimero estabilizante y su concentracion, la concentracion de los monomeros y la concentracion del iniciador. – la nucleacion de las particulas se produce a los 20-25 minutos del inicio de la polimerizacion, alcanzando su tama\u00f1o definitivo y una forma esferica sin rugosidad. – la actuacion del polimero estabilizante es por absorcion quimica sin llegar a descartar la fisica. en la tercera parte se comprueba que las espumas obtenidas con estos productos son superiores en propiedades mecanicas a las obtenidas con polioleteres convencionales.<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abObtencion, por polimerizacion por dispersion, de polioleteres polimericos.<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Obtencion, por polimerizacion por dispersion, de polioleteres polimericos. <\/li>\n
  • Autor:<\/strong>\u00a0 Mar\u00eda no Malaga Mellado <\/li>\n
  • Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Delgado Oyague Juan Antonio<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: Enrique Costa Novella <\/li>\n
        • Jacinto Monge Gutierrez (vocal)<\/li>\n
        • Antonio De Lucas Martinez (vocal)<\/li>\n
        • Gomez Fatou Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Mar\u00eda no Malaga Mellado Se describe la investigacion realizada para obtener, por polimerizacion con dispersion, polioleteres polimericos […]<\/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":[332,986,305,19337,17,966],"tags":[2474,34927,7068,12828,9329,80880],"class_list":["post-134426","post","type-post","status-publish","format-standard","hentry","category-ciencias-tecnologicas","category-complutense-de-madrid","category-ingenieria-y-tecnologia-quimicas","category-poliuretanos","category-quimica","category-quimica-macromolecular","tag-antonio-de-lucas-Martinez","tag-delgado-oyague-juan-antonio","tag-enrique-costa-novella","tag-gomez-fatou-jose-maria","tag-jacinto-monge-gutierrez","tag-maria-no-malaga-mellado"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/134426","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=134426"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/134426\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=134426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=134426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=134426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}