{"id":65134,"date":"2008-11-06T00:00:00","date_gmt":"2008-11-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/polymeric-surfactants-in-miniemulsion-polymerization-industrial-applications\/"},"modified":"2008-11-06T00:00:00","modified_gmt":"2008-11-06T00:00:00","slug":"polymeric-surfactants-in-miniemulsion-polymerization-industrial-applications","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica-industrial\/polymeric-surfactants-in-miniemulsion-polymerization-industrial-applications\/","title":{"rendered":"Polymeric surfactants in miniemulsion polymerization: industrial applications"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Silfredo Javier Bohorquez Urdaneta <\/strong><\/h2>\n<p>La polimerizaci\u00f3n en miniemulsi\u00f3n ha generado un gran inter\u00e9s, tanto en la academia como a nivel industrial. Su principal caracter\u00edstica, la nucleaci\u00f3n en gotas, posee el potencial para la s\u00edntesis de l\u00e1texes con excelentes propiedades. Este trabajo busca explorar (desde un punto de vista industrial) el uso de la polimerizaci\u00f3n en miniemulsi\u00f3n en \u00e1reas especiales como: producci\u00f3n de l\u00e1texes de alto contenido en s\u00f3lidos, incorporaci\u00f3n de substancias hidrof\u00f3bicas (mon\u00f3meros y\/o resinas) y evaluaci\u00f3n de niveles de injerto\/adsorci\u00f3n de surfactante polim\u00e9rico. El sistema estuvo constituido por mon\u00f3meros vin\u00edlicos (acetato de vinilo\/veova10) estabilizados con alcohol poli-vinilico (pvoh). En la primera parte se analizo el comportamiento del pvoh como surfactante, evaluando concentraciones micelares criticas, isotermas de adsorci\u00f3n y capacidades de recubrimiento. Posteriormente se buscaron las mejores condiciones para producir miniemulsiones estables y con peque\u00f1os tama\u00f1os de gota. Se llevaron a cabo polimerizaciones en discontinuo bajo diferentes condiciones para evaluar los mecanismos de nucleaci\u00f3n de part\u00edculas (gota vs. Homog\u00e9nea o heterog\u00e9nea); y en semicontinuo se produjeron l\u00e1texes con 60 % p\/p de contenido en s\u00f3lidos con una viscosidad moderada. La reolog\u00eda de los l\u00e1texes estabilizados con pvoh fue estudiada con un modelo matem\u00e1tico desarrollado en el grupo, el cual emulo el comportamiento de la viscosidad de las dispersiones bajo diferentes condiciones. La incorporaci\u00f3n del veova10 fue analizada en la polimerizaci\u00f3n en miniemulsi\u00f3n\/emulsi\u00f3n en sistemas discontinuos y semicontinuos. Por otro lado, se sintetizaron part\u00edculas hibridas (acetato de vinilo\/veova10\/siliconas) cuyas respectivas pel\u00edculas presentaron buenas propiedades hidrof\u00f3bicas. Finalmente, lo niveles de injerto\/adsorci\u00f3n del pvoh fueron evaluados tanto en sistema de miniemulsi\u00f3n como emulsi\u00f3n convencional. La cantidad de pvoh injertada siempre fue mayor en los sistemas de miniemulsi\u00f3n, tanto en polimerizaciones en discontinuo o semicontinuo.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Polymeric surfactants in miniemulsion polymerization: industrial applications<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Polymeric surfactants in miniemulsion polymerization: industrial applications <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Silfredo Javier Bohorquez Urdaneta <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/06\/2008<\/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>Jos\u00e9 Mar\u00eda Asua Gonzalez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: giuseppe Storti <\/li>\n<li>stefan Bon (vocal)<\/li>\n<li>rolando Carlos Dias (vocal)<\/li>\n<li>wolf-dieter Hergeth (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Silfredo Javier Bohorquez Urdaneta La polimerizaci\u00f3n en miniemulsi\u00f3n ha generado un gran inter\u00e9s, tanto en la academia [&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":[12909,13563,333],"tags":[143671,140690,143673,143670,143672,126729],"class_list":["post-65134","post","type-post","status-publish","format-standard","hentry","category-pais-vasco-euskal-herriko-unibertsitatea","category-polimeros-en-forma-dispersa","category-quimica-industrial","tag-giuseppe-storti","tag-jose-maria-asua-gonzalez","tag-rolando-carlos-dias","tag-silfredo-javier-bohorquez-urdaneta","tag-stefan-bon","tag-wolf-dieter-hergeth"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/65134","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=65134"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/65134\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=65134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=65134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=65134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}