<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212019000300324</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Mezclas del nylon 6 y 11 con una poliesteramida derivada de los ácidos tartárico y succínico]]></article-title>
<article-title xml:lang="en"><![CDATA[Blends from nylon 6 and 11 with a polyesteramide derived from tartaric and succinic acids]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Rodríguez]]></surname>
<given-names><![CDATA[Ángel Tomás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Pérez]]></surname>
<given-names><![CDATA[Márian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Santín]]></surname>
<given-names><![CDATA[José María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Guerra]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alá]]></surname>
<given-names><![CDATA[Abdelilah]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Holguín Dpto. de Química. FACCINA Grupo de Investigación de Materiales y Ambiente]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Holguín FACCEA Departamento de Ingeniería Industrial]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Politécnica de Cataluña Escuela Técnica Superior de Ingenieros Industriales de Barcelona Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<numero>3</numero>
<fpage>324</fpage>
<lpage>335</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212019000300324&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212019000300324&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212019000300324&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El trabajo tiene el propósito de estudiar las propiedades mecánicas y la compatibilidad de mezclas binarias obtenidas a partir de la poliamida 6 y la poliamida 11, conuna poliesteramida derivada de los ácidos tartárico y succínico, con contenido en éster del 10 %. Se ha tratado de obtener un nuevo material, combinando las características mecánicas de las poliamidas comerciales con la degradabilidad de la poliesteramida para su uso con fines biomédicos, en hilos de sutura. Las mezclas se prepararon por fusión y la compatibilidad se evaluó por microscopía óptica. Mediante ensayos de tracción se obtuvieron las propiedades mecánicas de estos sistemas. Las características mecánicas de las mezclas obtenidas se encuentran disminuidas respecto al valor promedio de los componentes, lo que verifica la incompatibilidad observada por microscopía óptica; este comportamiento se corresponde con sistemas poliméricos incompatibles, lo que limita su utilización con fines biomédicos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The purpose of the work is to study the mechanical properties and compatibility of binary blends obtained from polyamide 6 and polyamide 11 with a polyesteramide derived from tartaric and succinic acids with an ester content of 10 %. We have tried to obtain a new material, combining the mechanical characteristics of commercial polyamides with the degradability of polyesteramide for use with biomedical purposes, in suture threads. The blends were prepared by melting and the compatibility was evaluated by optical microscopy. The mechanical properties of these systems were obtained by tensile tests. The mechanical characteristics of the obtained blends are diminished with respect to the average value of the components, which verifies the incompatibility observed by optical microscopy; this behavior corresponds to incompatible polymer systems, which limits its use for biomedical purposes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[mezclas binarias]]></kwd>
<kwd lng="es"><![CDATA[poliamida 6 y 11]]></kwd>
<kwd lng="es"><![CDATA[poliesteramida]]></kwd>
<kwd lng="es"><![CDATA[compatibilidad]]></kwd>
<kwd lng="es"><![CDATA[propiedades mecánicas]]></kwd>
<kwd lng="en"><![CDATA[binaryblends]]></kwd>
<kwd lng="en"><![CDATA[polyamide 6 and 11]]></kwd>
<kwd lng="en"><![CDATA[polyesteramide]]></kwd>
<kwd lng="en"><![CDATA[compatibility]]></kwd>
</kwd-group>
</article-meta>
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